First version of the SOurce SDK 2013

1 files changed, 3035 insertions, 0 deletions

diff --git a/mp/src/game/server/hl2/npc_rollermine.cpp b/mp/src/game/server/hl2/npc_rollermine.cpp
new file mode 100644
index 00000000..a843af19
--- /dev/null
+++ b/mp/src/game/server/hl2/npc_rollermine.cpp
@@ -0,0 +1,3035 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//

+//

+// Purpose: 

+//

+// $NoKeywords: $

+//=============================================================================//

+

+#include "cbase.h"

+#include "ai_default.h"

+#include "ai_task.h"

+#include "ai_schedule.h"

+#include "ai_hull.h"

+#include "ai_squadslot.h"

+#include "ai_basenpc.h"

+#include "ai_navigator.h"

+#include "ai_interactions.h"

+#include "ndebugoverlay.h"

+#include "explode.h"

+#include "bitstring.h"

+#include "vstdlib/random.h"

+#include "engine/IEngineSound.h"

+#include "decals.h"

+#include "antlion_dust.h"

+#include "ai_memory.h"

+#include "ai_squad.h"

+#include "ai_senses.h"

+#include "beam_shared.h"

+#include "iservervehicle.h"

+#include "SoundEmitterSystem/isoundemittersystembase.h"

+#include "physics_saverestore.h"

+#include "vphysics/constraints.h"

+#include "vehicle_base.h"

+#include "eventqueue.h"

+#include "te_effect_dispatch.h"

+#include "npc_rollermine.h"

+#include "func_break.h"

+#include "soundenvelope.h"

+#include "mapentities.h"

+#include "RagdollBoogie.h"

+#include "physics_collisionevent.h"

+// memdbgon must be the last include file in a .cpp file!!!

+#include "tier0/memdbgon.h"

+

+#define ROLLERMINE_MAX_TORQUE_FACTOR	5

+extern short g_sModelIndexWExplosion;

+

+ConVar	sk_rollermine_shock( "sk_rollermine_shock","0");

+ConVar	sk_rollermine_stun_delay("sk_rollermine_stun_delay", "1");

+ConVar	sk_rollermine_vehicle_intercept( "sk_rollermine_vehicle_intercept","1");

+

+enum

+{

+	ROLLER_SKIN_REGULAR = 0,

+	ROLLER_SKIN_FRIENDLY,

+	ROLLER_SKIN_DETONATE,

+};

+//-----------------------------------------------------------------------------

+// CRollerController implementation

+//-----------------------------------------------------------------------------

+//-----------------------------------------------------------------------------

+// Purpose: This class only implements the IMotionEvent-specific behavior

+//			It keeps track of the forces so they can be integrated

+//-----------------------------------------------------------------------------

+class CRollerController : public IMotionEvent

+{

+	DECLARE_SIMPLE_DATADESC();

+

+public:

+	IMotionEvent::simresult_e Simulate( IPhysicsMotionController *pController, IPhysicsObject *pObject, float deltaTime, Vector &linear, AngularImpulse &angular );

+

+	AngularImpulse	m_vecAngular;

+	Vector			m_vecLinear;

+

+	void Off( void ) { m_fIsStopped = true; }

+	void On( void ) { m_fIsStopped = false; }

+

+	bool IsOn( void ) { return !m_fIsStopped; }

+

+private:

+	bool	m_fIsStopped;

+};

+

+BEGIN_SIMPLE_DATADESC( CRollerController )

+

+	DEFINE_FIELD( m_vecAngular, FIELD_VECTOR ),

+	DEFINE_FIELD( m_vecLinear, FIELD_VECTOR ),

+	DEFINE_FIELD( m_fIsStopped, FIELD_BOOLEAN ),

+

+END_DATADESC()

+

+

+//-----------------------------------------------------------------------------

+IMotionEvent::simresult_e CRollerController::Simulate( IPhysicsMotionController *pController, IPhysicsObject *pObject, float deltaTime, Vector &linear, AngularImpulse &angular )

+{

+	if( m_fIsStopped )

+	{

+		return SIM_NOTHING;

+	}

+

+	linear = m_vecLinear;

+	angular = m_vecAngular;

+	

+	return IMotionEvent::SIM_LOCAL_ACCELERATION;

+}

+//-----------------------------------------------------------------------------

+

+

+#define ROLLERMINE_IDLE_SEE_DIST					2048

+#define ROLLERMINE_NORMAL_SEE_DIST					2048

+#define ROLLERMINE_WAKEUP_DIST						256

+#define ROLLERMINE_SEE_VEHICLESONLY_BEYOND_IDLE		300		// See every other than vehicles upto this distance (i.e. old idle see dist)

+#define ROLLERMINE_SEE_VEHICLESONLY_BEYOND_NORMAL	800		// See every other than vehicles upto this distance (i.e. old normal see dist)

+

+#define ROLLERMINE_RETURN_TO_PLAYER_DIST			(200*200)

+

+#define ROLLERMINE_MIN_ATTACK_DIST	1

+#define ROLLERMINE_MAX_ATTACK_DIST	4096

+

+#define	ROLLERMINE_OPEN_THRESHOLD	256

+

+#define ROLLERMINE_VEHICLE_OPEN_THRESHOLD	400

+#define ROLLERMINE_VEHICLE_HOP_THRESHOLD	300

+

+#define ROLLERMINE_HOP_DELAY				2			// Don't allow hops faster than this

+

+//#define ROLLERMINE_REQUIRED_TO_EXPLODE_VEHICLE		4

+

+#define ROLLERMINE_FEAR_DISTANCE			(300*300)

+

+//=========================================================

+// Custom schedules

+//=========================================================

+enum

+{

+	SCHED_ROLLERMINE_RANGE_ATTACK1 = LAST_SHARED_SCHEDULE,

+	SCHED_ROLLERMINE_CHASE_ENEMY,

+	SCHED_ROLLERMINE_BURIED_WAIT,

+	SCHED_ROLLERMINE_BURIED_UNBURROW,

+	SCHED_ROLLERMINE_FLEE,

+	SCHED_ROLLERMINE_ALERT_STAND,

+	SCHED_ROLLERMINE_NUDGE_TOWARDS_NODES,

+	SCHED_ROLLERMINE_PATH_TO_PLAYER,

+	SCHED_ROLLERMINE_ROLL_TO_PLAYER,

+	SCHED_ROLLERMINE_POWERDOWN,

+};

+

+//=========================================================

+// Custom tasks

+//=========================================================

+enum 

+{

+	TASK_ROLLERMINE_CHARGE_ENEMY = LAST_SHARED_TASK,

+	TASK_ROLLERMINE_BURIED_WAIT,

+	TASK_ROLLERMINE_UNBURROW,

+	TASK_ROLLERMINE_GET_PATH_TO_FLEE,

+	TASK_ROLLERMINE_NUDGE_TOWARDS_NODES,

+	TASK_ROLLERMINE_RETURN_TO_PLAYER,

+	TASK_ROLLERMINE_POWERDOWN,

+};

+

+

+// This are little 'sound event' flags. Set the flag after you play the

+// sound, and the sound will not be allowed to play until the flag is then cleared.

+#define ROLLERMINE_SE_CLEAR		0x00000000

+#define ROLLERMINE_SE_CHARGE	0x00000001

+#define ROLLERMINE_SE_TAUNT		0x00000002

+#define ROLLERMINE_SE_SHARPEN	0x00000004

+#define ROLLERMINE_SE_TOSSED	0x00000008

+

+enum rollingsoundstate_t { ROLL_SOUND_NOT_READY = 0, ROLL_SOUND_OFF, ROLL_SOUND_CLOSED, ROLL_SOUND_OPEN };

+

+//=========================================================

+//=========================================================

+class CNPC_RollerMine : public CNPCBaseInteractive<CAI_BaseNPC>, public CDefaultPlayerPickupVPhysics

+{

+	DECLARE_CLASS( CNPC_RollerMine, CNPCBaseInteractive<CAI_BaseNPC> );

+	DECLARE_SERVERCLASS();

+

+public:

+

+	CNPC_RollerMine( void ) { m_bTurnedOn = true; m_bUniformSight = false; }

+	~CNPC_RollerMine( void );

+

+	void	Spawn( void );

+	bool	CreateVPhysics();

+	void	RunAI();

+	void	StartTask( const Task_t *pTask );

+	void	RunTask( const Task_t *pTask );

+	void	SpikeTouch( CBaseEntity *pOther );

+	void	ShockTouch( CBaseEntity *pOther );

+	void	CloseTouch( CBaseEntity *pOther );

+	void	EmbedTouch( CBaseEntity *pOther );

+	float	GetAttackDamageScale( CBaseEntity *pVictim );

+	void	VPhysicsCollision( int index, gamevcollisionevent_t *pEvent );

+	void	Precache( void );

+	void	OnPhysGunPickup( CBasePlayer *pPhysGunUser, PhysGunPickup_t reason );

+	void	OnPhysGunDrop( CBasePlayer *pPhysGunUser, PhysGunDrop_t Reason );

+	void	StopLoopingSounds( void );

+	void	PrescheduleThink();

+	bool	ShouldSavePhysics()	{ return true; }

+	void	OnRestore();

+	void	Bury( trace_t *tr );

+	bool	QuerySeeEntity(CBaseEntity *pSightEnt, bool bOnlyHateOrFearIfNPC = false );

+

+	int		RangeAttack1Conditions ( float flDot, float flDist );

+	int		SelectSchedule( void );

+	int		TranslateSchedule( int scheduleType );

+	int		GetHackedIdleSchedule( void );

+

+	bool	OverrideMove( float flInterval ) { return true; }

+	bool	IsValidEnemy( CBaseEntity *pEnemy );

+	bool	IsPlayerVehicle( CBaseEntity *pEntity );

+	bool	IsShocking() { return gpGlobals->curtime < m_flShockTime ? true : false; }

+	void	UpdateRollingSound();

+	void	UpdatePingSound();

+	void	StopRollingSound();

+	void	StopPingSound();

+	float	RollingSpeed();

+	float	GetStunDelay();

+	void	EmbedOnGroundImpact();

+	void	UpdateEfficiency( bool bInPVS )	{ SetEfficiency( ( GetSleepState() != AISS_AWAKE ) ? AIE_DORMANT : AIE_NORMAL ); SetMoveEfficiency( AIME_NORMAL ); }

+	void	DrawDebugGeometryOverlays()

+	{

+		if (m_debugOverlays & OVERLAY_BBOX_BIT) 

+		{

+			float dist = GetSenses()->GetDistLook();

+			Vector range(dist, dist, 64);

+			NDebugOverlay::Box( GetAbsOrigin(), -range, range, 255, 0, 0, 0, 0 );

+		}

+		BaseClass::DrawDebugGeometryOverlays();

+	}

+	// UNDONE: Put this in the qc file!

+	Vector EyePosition() 

+	{

+		// This takes advantage of the fact that the system knows

+		// that the abs origin is at the center of the rollermine

+		// and that the OBB is actually world-aligned despite the

+		// fact that SOLID_VPHYSICS is being used

+		Vector eye = CollisionProp()->GetCollisionOrigin();

+		eye.z += CollisionProp()->OBBMaxs().z;

+		return eye;

+	}

+

+	int		OnTakeDamage( const CTakeDamageInfo &info );

+	void	TraceAttack( const CTakeDamageInfo &info, const Vector &vecDir, trace_t *ptr, CDmgAccumulator *pAccumulator );

+

+	Class_T	Classify() 

+	{ 

+		if( !m_bTurnedOn )

+			return CLASS_NONE;

+

+		//About to blow up after being hacked so do damage to the player.

+		if ( m_bHackedByAlyx && ( m_flPowerDownDetonateTime > 0.0f && m_flPowerDownDetonateTime <= gpGlobals->curtime ) )

+			return CLASS_COMBINE;

+

+		return ( m_bHeld || m_bHackedByAlyx ) ? CLASS_HACKED_ROLLERMINE : CLASS_COMBINE; 

+	}

+

+	virtual bool ShouldGoToIdleState() 

+	{ 

+		return gpGlobals->curtime > m_flGoIdleTime ? true : false;

+	}

+

+	virtual	void OnStateChange( NPC_STATE OldState, NPC_STATE NewState );

+

+	// Vehicle interception

+	bool	EnemyInVehicle( void );

+	float	VehicleHeading( CBaseEntity *pVehicle );

+

+	NPC_STATE SelectIdealState();

+

+	// Vehicle sticking

+	void		StickToVehicle( CBaseEntity *pOther );

+	void		AnnounceArrivalToOthers( CBaseEntity *pOther );

+	void		UnstickFromVehicle( void );

+	CBaseEntity *GetVehicleStuckTo( void );

+	int			CountRollersOnMyVehicle( CUtlVector<CNPC_RollerMine*> *pRollerList );

+	void		InputConstraintBroken( inputdata_t &inputdata );

+	void		InputRespondToChirp( inputdata_t &inputdata );

+	void		InputRespondToExplodeChirp( inputdata_t &inputdata );

+	void		InputJoltVehicle( inputdata_t &inputdata );

+	void		InputTurnOn( inputdata_t &inputdata );

+	void		InputTurnOff( inputdata_t &inputdata );

+	void		InputPowerdown( inputdata_t &inputdata );

+

+	void		PreventUnstickUntil( float flTime ) { m_flPreventUnstickUntil = flTime; }

+

+	virtual unsigned int	PhysicsSolidMaskForEntity( void ) const;

+

+	void		SetRollerSkin( void );

+

+	COutputEvent m_OnPhysGunDrop;

+	COutputEvent m_OnPhysGunPickup;

+

+protected:

+	DEFINE_CUSTOM_AI;

+	DECLARE_DATADESC();

+

+	bool	BecomePhysical();

+	void	WakeNeighbors();

+	bool	WakeupMine( CAI_BaseNPC *pNPC );

+

+	void	Open( void );

+	void	Close( void );

+	void	Explode( void );

+	void	PreDetonate( void );

+	void	Hop( float height );

+

+	void	ShockTarget( CBaseEntity *pOther );

+

+	bool	IsActive() { return m_flActiveTime > gpGlobals->curtime ? false : true; }

+

+	// INPCInteractive Functions

+	virtual bool	CanInteractWith( CAI_BaseNPC *pUser ) { return true; }

+	virtual	bool	HasBeenInteractedWith()	{ return m_bHackedByAlyx; }

+	virtual void	NotifyInteraction( CAI_BaseNPC *pUser );

+

+	CSoundPatch					*m_pRollSound;

+	CSoundPatch					*m_pPingSound;

+

+	CRollerController			m_RollerController;

+	IPhysicsMotionController	*m_pMotionController;

+

+	float	m_flSeeVehiclesOnlyBeyond;

+	float	m_flChargeTime;

+	float	m_flGoIdleTime;

+	float	m_flShockTime;

+	float	m_flForwardSpeed;

+	int		m_iSoundEventFlags;

+	rollingsoundstate_t m_rollingSoundState;

+

+	CNetworkVar( bool, m_bIsOpen );

+	CNetworkVar( float, m_flActiveTime );	//If later than the current time, this will force the mine to be active

+

+	bool	m_bHeld;		//Whether or not the player is holding the mine

+	EHANDLE m_hVehicleStuckTo;

+	float	m_flPreventUnstickUntil;

+	float	m_flNextHop;

+	bool	m_bStartBuried;

+	bool	m_bBuried;

+	bool	m_bIsPrimed;

+	bool	m_wakeUp;

+	bool	m_bEmbedOnGroundImpact;

+	CNetworkVar( bool,	m_bHackedByAlyx );

+

+	// Constraint used to stick us to a vehicle

+	IPhysicsConstraint *m_pConstraint;

+

+	bool	m_bTurnedOn;

+	bool	m_bUniformSight;

+

+	CNetworkVar( bool,	m_bPowerDown );

+	float	m_flPowerDownTime;

+	float	m_flPowerDownDetonateTime;

+

+	static string_t gm_iszDropshipClassname;

+};

+

+string_t CNPC_RollerMine::gm_iszDropshipClassname;

+

+LINK_ENTITY_TO_CLASS( npc_rollermine, CNPC_RollerMine );

+

+//-----------------------------------------------------------------------------

+//-----------------------------------------------------------------------------

+BEGIN_DATADESC( CNPC_RollerMine )

+

+	DEFINE_SOUNDPATCH( m_pRollSound ),

+	DEFINE_SOUNDPATCH( m_pPingSound ),

+	DEFINE_EMBEDDED( m_RollerController ),

+	DEFINE_PHYSPTR( m_pMotionController ),

+

+	DEFINE_FIELD( m_flSeeVehiclesOnlyBeyond, FIELD_FLOAT ),

+	DEFINE_FIELD( m_flActiveTime, FIELD_TIME ),

+	DEFINE_FIELD( m_flChargeTime, FIELD_TIME ),

+	DEFINE_FIELD( m_flGoIdleTime, FIELD_TIME ),

+	DEFINE_FIELD( m_flShockTime, FIELD_TIME ),

+	DEFINE_FIELD( m_flForwardSpeed, FIELD_FLOAT ),

+	DEFINE_FIELD( m_bIsOpen, FIELD_BOOLEAN ),

+	DEFINE_FIELD( m_bHeld, FIELD_BOOLEAN ),

+	DEFINE_FIELD( m_hVehicleStuckTo, FIELD_EHANDLE ),

+	DEFINE_FIELD( m_flPreventUnstickUntil, FIELD_TIME ),

+	DEFINE_FIELD( m_flNextHop, FIELD_FLOAT ),

+	DEFINE_FIELD( m_bIsPrimed, FIELD_BOOLEAN ),

+	DEFINE_FIELD( m_iSoundEventFlags, FIELD_INTEGER ),

+	DEFINE_FIELD( m_rollingSoundState, FIELD_INTEGER ),

+

+	DEFINE_KEYFIELD( m_bStartBuried, FIELD_BOOLEAN, "StartBuried" ),

+	DEFINE_FIELD( m_bBuried, FIELD_BOOLEAN ),

+	DEFINE_FIELD( m_wakeUp, FIELD_BOOLEAN ),

+	DEFINE_FIELD( m_bEmbedOnGroundImpact, FIELD_BOOLEAN ),

+	DEFINE_FIELD( m_bHackedByAlyx, FIELD_BOOLEAN ),

+

+	DEFINE_FIELD( m_bPowerDown,	FIELD_BOOLEAN ),

+	DEFINE_FIELD( m_flPowerDownTime,	FIELD_TIME ),

+	DEFINE_FIELD( m_flPowerDownDetonateTime,	FIELD_TIME ),

+

+	DEFINE_PHYSPTR( m_pConstraint ),

+

+	DEFINE_FIELD( m_bTurnedOn, FIELD_BOOLEAN ),

+	DEFINE_KEYFIELD( m_bUniformSight, FIELD_BOOLEAN, "uniformsightdist" ),

+

+	DEFINE_INPUTFUNC( FIELD_VOID, "ConstraintBroken", InputConstraintBroken ),

+	DEFINE_INPUTFUNC( FIELD_VOID, "RespondToChirp", InputRespondToChirp ),

+	DEFINE_INPUTFUNC( FIELD_VOID, "RespondToExplodeChirp", InputRespondToExplodeChirp ),

+	DEFINE_INPUTFUNC( FIELD_VOID, "JoltVehicle", InputJoltVehicle ),

+	DEFINE_INPUTFUNC( FIELD_VOID, "TurnOn", InputTurnOn ),

+	DEFINE_INPUTFUNC( FIELD_VOID, "TurnOff", InputTurnOff ),

+	DEFINE_INPUTFUNC( FIELD_VOID, "PowerDown", InputPowerdown ),

+

+	// Function Pointers

+	DEFINE_ENTITYFUNC( SpikeTouch ),

+	DEFINE_ENTITYFUNC( ShockTouch ),

+	DEFINE_ENTITYFUNC( CloseTouch ),

+	DEFINE_ENTITYFUNC( EmbedTouch ),

+	DEFINE_THINKFUNC( Explode ),

+	DEFINE_THINKFUNC( PreDetonate ),

+

+	DEFINE_OUTPUT( m_OnPhysGunDrop, "OnPhysGunDrop" ),

+	DEFINE_OUTPUT( m_OnPhysGunPickup, "OnPhysGunPickup" ),

+

+	DEFINE_BASENPCINTERACTABLE_DATADESC(),

+

+END_DATADESC()

+

+IMPLEMENT_SERVERCLASS_ST( CNPC_RollerMine, DT_RollerMine )

+	SendPropInt(SENDINFO(m_bIsOpen), 1, SPROP_UNSIGNED ),

+	SendPropFloat(SENDINFO(m_flActiveTime), 0, SPROP_NOSCALE ),

+	SendPropInt(SENDINFO(m_bHackedByAlyx), 1, SPROP_UNSIGNED ),

+	SendPropInt(SENDINFO(m_bPowerDown), 1, SPROP_UNSIGNED ),

+END_SEND_TABLE()

+

+bool NPC_Rollermine_IsRollermine( CBaseEntity *pEntity )

+{

+	CNPC_RollerMine *pRoller = dynamic_cast<CNPC_RollerMine *>(pEntity);

+	return pRoller ? true : false;

+}

+

+CBaseEntity *NPC_Rollermine_DropFromPoint( const Vector &originStart, CBaseEntity *pOwner, const char *pszTemplate )

+{

+	CBaseEntity *pEntity = NULL;

+	CNPC_RollerMine *pMine = NULL;

+

+	// Use the template, if we have it

+	if ( pszTemplate && pszTemplate[0] )

+	{

+		MapEntity_ParseEntity( pEntity, pszTemplate, NULL );

+		pMine = dynamic_cast<CNPC_RollerMine *>(pEntity);

+	}

+	else

+	{

+		pMine = (CNPC_RollerMine*)CreateEntityByName("npc_rollermine");

+	}

+

+	if ( pMine )

+	{

+		pMine->SetAbsOrigin( originStart );

+		pMine->SetOwnerEntity( pOwner );

+		pMine->Spawn();

+

+		if ( !pszTemplate || !pszTemplate[0] )

+		{

+			pMine->EmbedOnGroundImpact();

+		}

+	}

+	else

+	{

+		Warning( "NULL Ent in Rollermine Create!\n" );

+	}

+

+	return pMine;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+CNPC_RollerMine::~CNPC_RollerMine( void )

+{

+	if ( m_pMotionController != NULL )

+	{

+		physenv->DestroyMotionController( m_pMotionController );

+		m_pMotionController = NULL;

+	}

+

+	UnstickFromVehicle();

+}

+

+//-----------------------------------------------------------------------------

+// Purpose:

+// Input  :

+// Output :

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::Precache( void )

+{

+	PrecacheModel( "models/roller.mdl" );

+	PrecacheModel( "models/roller_spikes.mdl" );

+

+	PrecacheModel( "sprites/bluelight1.vmt" );

+	PrecacheModel( "sprites/rollermine_shock.vmt" );

+	PrecacheModel( "sprites/rollermine_shock_yellow.vmt" );

+

+	PrecacheScriptSound( "NPC_RollerMine.Taunt" );

+	PrecacheScriptSound( "NPC_RollerMine.OpenSpikes" );

+	PrecacheScriptSound( "NPC_RollerMine.Warn" );

+	PrecacheScriptSound( "NPC_RollerMine.Shock" );

+	PrecacheScriptSound( "NPC_RollerMine.ExplodeChirp" );

+	PrecacheScriptSound( "NPC_RollerMine.Chirp" );

+	PrecacheScriptSound( "NPC_RollerMine.ChirpRespond" );

+	PrecacheScriptSound( "NPC_RollerMine.ExplodeChirpRespond" );

+	PrecacheScriptSound( "NPC_RollerMine.JoltVehicle" );

+	PrecacheScriptSound( "NPC_RollerMine.Tossed" );

+	PrecacheScriptSound( "NPC_RollerMine.Hurt" );

+

+	PrecacheScriptSound( "NPC_RollerMine.Roll" );

+	PrecacheScriptSound( "NPC_RollerMine.RollWithSpikes" );

+	PrecacheScriptSound( "NPC_RollerMine.Ping" );

+	PrecacheScriptSound( "NPC_RollerMine.Held" );

+

+	PrecacheScriptSound( "NPC_RollerMine.Reprogram" );

+

+	PrecacheMaterial( "effects/rollerglow" );

+

+	gm_iszDropshipClassname = AllocPooledString( "npc_combinedropship" ); // For fast string compares.

+#ifdef HL2_EPISODIC

+	PrecacheScriptSound( "RagdollBoogie.Zap" );

+#endif

+

+	BaseClass::Precache();

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose:

+// Input  :

+// Output :

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::Spawn( void )

+{

+	Precache();

+

+	SetSolid( SOLID_VPHYSICS );

+	AddSolidFlags( FSOLID_FORCE_WORLD_ALIGNED | FSOLID_NOT_STANDABLE );

+

+	BaseClass::Spawn();

+

+	AddEFlags( EFL_NO_DISSOLVE );

+

+	CapabilitiesClear();

+	CapabilitiesAdd( bits_CAP_MOVE_GROUND | bits_CAP_INNATE_RANGE_ATTACK1 | bits_CAP_SQUAD );

+

+	m_pRollSound = NULL;

+

+	m_bIsOpen = true;

+	Close();

+

+	m_bPowerDown = false;

+	

+	m_flFieldOfView		= -1.0f;

+	m_flForwardSpeed	= -1200;

+	m_bloodColor		= DONT_BLEED;

+

+	SetHullType(HULL_SMALL_CENTERED);

+

+	SetHullSizeNormal();

+

+	m_flActiveTime		= 0;

+

+	m_bBuried = m_bStartBuried;

+	if ( m_bStartBuried )

+	{

+		trace_t tr;

+		Bury( &tr );

+	}

+

+	NPCInit();

+

+	m_takedamage = DAMAGE_EVENTS_ONLY;

+	SetDistLook( ROLLERMINE_IDLE_SEE_DIST );

+

+	if( m_bUniformSight )

+	{

+		m_flSeeVehiclesOnlyBeyond = ROLLERMINE_IDLE_SEE_DIST;

+	}

+	else

+	{

+		m_flSeeVehiclesOnlyBeyond = ROLLERMINE_SEE_VEHICLESONLY_BEYOND_IDLE;

+	}

+

+	//Suppress superfluous warnings from animation system

+	m_flGroundSpeed = 20;

+	m_NPCState		= NPC_STATE_NONE;

+

+	m_rollingSoundState = ROLL_SOUND_OFF;

+

+	m_pConstraint = NULL;

+	m_hVehicleStuckTo = NULL;

+	m_flPreventUnstickUntil = 0;

+	m_flNextHop = 0;

+

+	m_flPowerDownDetonateTime = 0.0f;

+	m_bPowerDown = false;

+	m_flPowerDownTime = 0.0f;

+

+	//Set their yaw speed to 0 so the motor doesn't rotate them.

+	GetMotor()->SetYawSpeed( 0.0f );

+	SetRollerSkin();

+}

+

+//-----------------------------------------------------------------------------

+// Set the contents types that are solid by default to this NPC

+//-----------------------------------------------------------------------------

+unsigned int CNPC_RollerMine::PhysicsSolidMaskForEntity( void ) const 

+{ 

+	if ( HasSpawnFlags( SF_ROLLERMINE_PROP_COLLISION ) )

+		return MASK_SOLID;

+

+	return MASK_NPCSOLID;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::Bury( trace_t *tr )

+{

+	AI_TraceHull( GetAbsOrigin() + Vector(0,0,64), GetAbsOrigin() - Vector( 0, 0, MAX_TRACE_LENGTH ), Vector(-16,-16,-16), Vector(16,16,16), MASK_NPCSOLID, this, GetCollisionGroup(), tr );

+

+	//NDebugOverlay::Box( tr->startpos, Vector(-16,-16,-16), Vector(16,16,16), 255, 0, 0, 64, 10.0 );

+	//NDebugOverlay::Box( tr->endpos, Vector(-16,-16,-16), Vector(16,16,16), 0, 255, 0, 64, 10.0 );

+

+	// Move into the ground layer

+	Vector buriedPos = tr->endpos - Vector( 0, 0, GetHullHeight() * 0.5 );

+	Teleport( &buriedPos, NULL, &vec3_origin );

+	SetMoveType( MOVETYPE_NONE );

+

+	SetSchedule( SCHED_ROLLERMINE_BURIED_WAIT );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+bool CNPC_RollerMine::WakeupMine( CAI_BaseNPC *pNPC )

+{

+	if ( pNPC && pNPC->m_iClassname == m_iClassname && pNPC != this )

+	{

+		CNPC_RollerMine *pMine = dynamic_cast<CNPC_RollerMine *>(pNPC);

+		if ( pMine )

+		{

+			if ( pMine->m_NPCState == NPC_STATE_IDLE )

+			{

+				pMine->m_wakeUp = false;

+				pMine->SetIdealState( NPC_STATE_ALERT );

+				return true;

+			}

+		}

+	}

+

+	return false;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::WakeNeighbors()

+{

+	if ( !m_wakeUp || !IsActive() )

+		return;

+	m_wakeUp = false;

+

+	if ( m_pSquad )

+	{

+		AISquadIter_t iter;

+		for (CAI_BaseNPC *pSquadMember = m_pSquad->GetFirstMember( &iter ); pSquadMember; pSquadMember = m_pSquad->GetNextMember( &iter ) )

+		{

+			WakeupMine( pSquadMember );

+		}

+		return;

+	}

+

+	CBaseEntity *entityList[64];

+	Vector range(ROLLERMINE_WAKEUP_DIST,ROLLERMINE_WAKEUP_DIST,64);

+	int boxCount = UTIL_EntitiesInBox( entityList, ARRAYSIZE(entityList), GetAbsOrigin()-range, GetAbsOrigin()+range, FL_NPC );

+	//NDebugOverlay::Box( GetAbsOrigin(), -range, range, 255, 0, 0, 64, 10.0 );

+	int wakeCount = 0;

+	while ( boxCount > 0 )

+	{

+		boxCount--;

+		CAI_BaseNPC *pNPC = entityList[boxCount]->MyNPCPointer();

+		if ( WakeupMine( pNPC ) )

+		{

+			wakeCount++;

+			if ( wakeCount >= 2 )

+				return;

+		}

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::OnStateChange( NPC_STATE OldState, NPC_STATE NewState )

+{

+	if ( NewState == NPC_STATE_IDLE )

+	{

+		SetDistLook( ROLLERMINE_IDLE_SEE_DIST );

+		m_flDistTooFar = ROLLERMINE_IDLE_SEE_DIST;

+

+		if( m_bUniformSight )

+		{

+			m_flSeeVehiclesOnlyBeyond = ROLLERMINE_IDLE_SEE_DIST;

+		}

+		else

+		{

+			m_flSeeVehiclesOnlyBeyond = ROLLERMINE_SEE_VEHICLESONLY_BEYOND_IDLE;

+		}

+		

+		m_RollerController.m_vecAngular = vec3_origin;

+		m_wakeUp = true;

+	}

+	else

+	{

+		if ( OldState == NPC_STATE_IDLE )

+		{

+			// wake the neighbors!

+			WakeNeighbors();

+		}

+		SetDistLook( ROLLERMINE_NORMAL_SEE_DIST );

+

+		if( m_bUniformSight )

+		{

+			m_flSeeVehiclesOnlyBeyond = ROLLERMINE_NORMAL_SEE_DIST;

+		}

+		else

+		{

+			m_flSeeVehiclesOnlyBeyond = ROLLERMINE_SEE_VEHICLESONLY_BEYOND_NORMAL;

+		}

+

+		m_flDistTooFar = ROLLERMINE_NORMAL_SEE_DIST;

+	}

+	BaseClass::OnStateChange( OldState, NewState );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+NPC_STATE CNPC_RollerMine::SelectIdealState( void )

+{

+	switch ( m_NPCState )

+	{

+		case NPC_STATE_COMBAT:

+		{

+			if ( HasCondition( COND_ENEMY_TOO_FAR ) )

+			{

+				ClearEnemyMemory();

+				SetEnemy( NULL );

+				m_flGoIdleTime = gpGlobals->curtime + 10;

+				return NPC_STATE_ALERT;

+			}

+		}

+	}

+

+	return BaseClass::SelectIdealState();

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Output : Returns true on success, false on failure.

+//-----------------------------------------------------------------------------

+bool CNPC_RollerMine::BecomePhysical( void )

+{

+	VPhysicsDestroyObject();

+

+	RemoveSolidFlags( FSOLID_NOT_SOLID );

+

+	//Setup the physics controller on the roller

+	IPhysicsObject *pPhysicsObject = VPhysicsInitNormal( SOLID_VPHYSICS, GetSolidFlags() , false );

+

+	if ( pPhysicsObject == NULL )

+		return false;

+

+	m_pMotionController = physenv->CreateMotionController( &m_RollerController );

+	m_pMotionController->AttachObject( pPhysicsObject, true );

+

+	SetMoveType( MOVETYPE_VPHYSICS );

+

+	return true;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::OnRestore()

+{

+	BaseClass::OnRestore();

+	if ( m_pMotionController )

+	{

+		m_pMotionController->SetEventHandler( &m_RollerController );

+	}

+

+	// If we're stuck to a vehicle over a level transition, restart our jolt inputs

+	if ( GetVehicleStuckTo() )

+	{

+		if ( !g_EventQueue.HasEventPending( this, "JoltVehicle" ) )

+		{

+			g_EventQueue.AddEvent( this, "JoltVehicle", RandomFloat(3,6), NULL, NULL );

+		}

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+bool CNPC_RollerMine::CreateVPhysics()

+{

+	if ( m_bBuried )

+	{

+		VPhysicsInitStatic();

+		return true;

+	}

+	else

+	{

+		return BecomePhysical();

+	}

+}	

+

+//-----------------------------------------------------------------------------

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::RunAI()

+{

+	if( m_bTurnedOn )

+	{

+		// Scare combine if hacked by Alyx.

+		IPhysicsObject *pPhysicsObject = VPhysicsGetObject();

+

+		Vector vecVelocity;

+

+		if ( pPhysicsObject != NULL )

+		{

+			pPhysicsObject->GetVelocity( &vecVelocity, NULL );

+		}

+

+		if( !m_bHeld && vecVelocity.Length() > 64.0 )

+		{

+			if( m_bHackedByAlyx )

+			{

+				// Scare combine

+				CSoundEnt::InsertSound( (SOUND_DANGER | SOUND_CONTEXT_COMBINE_ONLY | SOUND_CONTEXT_REACT_TO_SOURCE | SOUND_CONTEXT_DANGER_APPROACH), WorldSpaceCenter() + Vector( 0, 0, 32 ) + vecVelocity * 0.5f, 120.0f, 0.2f, this, SOUNDENT_CHANNEL_REPEATED_DANGER );

+			}

+			else

+			{

+				// Scare player allies

+				CSoundEnt::InsertSound( (SOUND_DANGER | SOUND_CONTEXT_EXCLUDE_COMBINE | SOUND_CONTEXT_REACT_TO_SOURCE | SOUND_CONTEXT_DANGER_APPROACH), WorldSpaceCenter() + Vector( 0, 0, 32 ) + vecVelocity * 0.5f, 120.0f, 0.2f, this, SOUNDENT_CHANNEL_REPEATED_DANGER );

+			}

+		}

+

+		BaseClass::RunAI();

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose:

+// Input  :

+// Output :

+//-----------------------------------------------------------------------------

+int CNPC_RollerMine::RangeAttack1Conditions( float flDot, float flDist )

+{

+	if( HasCondition( COND_SEE_ENEMY ) == false )

+		return COND_NONE;

+

+	if ( EnemyInVehicle() )

+		return COND_CAN_RANGE_ATTACK1;

+

+	if( flDist > ROLLERMINE_MAX_ATTACK_DIST  )

+		return COND_TOO_FAR_TO_ATTACK;

+	

+	if (flDist < ROLLERMINE_MIN_ATTACK_DIST )

+		return COND_TOO_CLOSE_TO_ATTACK;

+

+	return COND_CAN_RANGE_ATTACK1;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose:

+// Input  :

+// Output :

+//-----------------------------------------------------------------------------

+int CNPC_RollerMine::SelectSchedule( void )

+{

+	if ( m_bPowerDown )

+		return SCHED_ROLLERMINE_POWERDOWN;

+

+	if ( m_bBuried )

+	{

+		if ( HasCondition(COND_NEW_ENEMY) || HasCondition(COND_LIGHT_DAMAGE) )

+			return SCHED_ROLLERMINE_BURIED_UNBURROW;

+

+		return SCHED_ROLLERMINE_BURIED_WAIT;

+	}

+

+	//If we're held, don't try and do anything

+	if ( ( m_bHeld ) || !IsActive() || m_hVehicleStuckTo )

+		return SCHED_ALERT_STAND;

+

+	// If we can see something we're afraid of, run from it

+	if ( HasCondition( COND_SEE_FEAR ) )

+		return SCHED_ROLLERMINE_FLEE;

+

+	switch( m_NPCState )

+	{

+	case NPC_STATE_COMBAT:

+

+		if ( HasCondition( COND_CAN_RANGE_ATTACK1 ) )

+			return SCHED_ROLLERMINE_RANGE_ATTACK1;

+		

+		return SCHED_ROLLERMINE_CHASE_ENEMY;

+		break;

+

+	default:

+		break;

+	}

+

+	// Rollermines never wait to fall to the ground

+	ClearCondition( COND_FLOATING_OFF_GROUND );

+

+	return BaseClass::SelectSchedule();

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+int CNPC_RollerMine::GetHackedIdleSchedule( void )

+{

+	// If we've been hacked, return to the player

+	if ( !m_bHackedByAlyx || m_bHeld )

+		return SCHED_NONE;

+

+	// Are we near the player?

+	CBaseEntity *pPlayer = gEntList.FindEntityByName( NULL, "!player" );

+	if ( !pPlayer )

+		return SCHED_NONE;

+

+	if ( !HasCondition(COND_SEE_PLAYER) )

+		return SCHED_ROLLERMINE_PATH_TO_PLAYER;

+

+	if ( GetAbsOrigin().DistToSqr( pPlayer->GetAbsOrigin() ) > ROLLERMINE_RETURN_TO_PLAYER_DIST )

+		return SCHED_ROLLERMINE_ROLL_TO_PLAYER;

+

+	return SCHED_NONE;

+}

+

+//-----------------------------------------------------------------------------

+//-----------------------------------------------------------------------------

+int CNPC_RollerMine::TranslateSchedule( int scheduleType )

+{

+	switch( scheduleType )

+	{

+	case SCHED_IDLE_STAND:

+		{

+			int iSched = GetHackedIdleSchedule();

+			if ( iSched != SCHED_NONE )

+				return iSched;

+

+			return SCHED_IDLE_STAND;

+		}

+		break;

+

+	case SCHED_ALERT_STAND:

+		{

+			int iSched = GetHackedIdleSchedule();

+			if ( iSched != SCHED_NONE )

+				return iSched;

+

+			return SCHED_ROLLERMINE_ALERT_STAND;

+		}

+		break;

+

+	case SCHED_ROLLERMINE_RANGE_ATTACK1:

+		if( HasCondition(COND_ENEMY_OCCLUDED) )

+		{

+			// Because of an unfortunate arrangement of cascading failing schedules, the rollermine

+			// could end up here with instructions to drive towards the target, although the target is

+			// not in sight. Nudge around randomly until we're back on the nodegraph.

+			return SCHED_ROLLERMINE_NUDGE_TOWARDS_NODES;

+		}

+		break;

+	}

+

+	return scheduleType;

+}

+

+

+#if 0

+#define	ROLLERMINE_DETECTION_RADIUS		350

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Output : Returns true on success, false on failure.

+//-----------------------------------------------------------------------------

+bool CNPC_RollerMine::DetectedEnemyInProximity( void )

+{

+	CBaseEntity *pEnt = NULL;

+	CBaseEntity *pBestEnemy = NULL;

+	float		flBestDist = MAX_TRACE_LENGTH;

+

+	while ( ( pEnt = gEntList.FindEntityInSphere( pEnt, GetAbsOrigin(), ROLLERMINE_DETECTION_RADIUS ) ) != NULL )

+	{

+		if ( IRelationType( pEnt ) != D_HT )

+			continue;

+

+		float distance = ( pEnt->GetAbsOrigin() - GetAbsOrigin() ).Length();

+		

+		if ( distance >= flBestDist )

+			continue;

+

+		pBestEnemy = pEnt;

+		flBestDist = distance;

+	}

+

+	if ( pBestEnemy != NULL )

+	{

+		SetEnemy( pBestEnemy );

+		return true;

+	}

+

+	return false;

+}

+#endif

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *pSightEnt - 

+// Output : Returns true on success, false on failure.

+//-----------------------------------------------------------------------------

+bool CNPC_RollerMine::QuerySeeEntity(CBaseEntity *pSightEnt, bool bOnlyHateOrFearIfNPC)

+{

+	if ( IRelationType( pSightEnt ) == D_FR )

+	{

+		// Only see feared objects up close

+		float flDist = (WorldSpaceCenter() - pSightEnt->WorldSpaceCenter()).LengthSqr();

+		if ( flDist > ROLLERMINE_FEAR_DISTANCE )

+			return false;

+	}

+

+	return BaseClass::QuerySeeEntity(pSightEnt, bOnlyHateOrFearIfNPC);

+}

+

+//-----------------------------------------------------------------------------

+// Purpose:

+// Input  :

+// Output :

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::StartTask( const Task_t *pTask )

+{

+	switch( pTask->iTask )

+	{

+	case TASK_FACE_REASONABLE:

+	case TASK_FACE_SAVEPOSITION:

+	case TASK_FACE_LASTPOSITION:

+	case TASK_FACE_TARGET:

+	case TASK_FACE_AWAY_FROM_SAVEPOSITION:

+	case TASK_FACE_HINTNODE:

+	case TASK_FACE_ENEMY:

+	case TASK_FACE_PLAYER:

+	case TASK_FACE_PATH:

+	case TASK_FACE_IDEAL:

+		// This only applies to NPCs that aren't spheres with omnidirectional eyesight.

+		TaskComplete();

+		break;

+

+	case TASK_ROLLERMINE_UNBURROW:

+		

+		{

+			AddSolidFlags( FSOLID_NOT_SOLID );

+			SetMoveType( MOVETYPE_NOCLIP );

+			SetAbsVelocity( Vector( 0, 0, 256 ) );

+			Open();

+

+			trace_t	tr;

+			AI_TraceLine( GetAbsOrigin()+Vector(0,0,1), GetAbsOrigin()-Vector(0,0,64), MASK_SOLID_BRUSHONLY, this, COLLISION_GROUP_NONE, &tr );

+

+			if ( tr.fraction < 1.0f )

+			{

+				UTIL_CreateAntlionDust( tr.endpos + Vector(0,0,24), GetLocalAngles() );		

+			}

+		}

+

+		return;

+		break;

+

+	case TASK_ROLLERMINE_BURIED_WAIT:

+		if ( HasCondition( COND_SEE_ENEMY ) )

+		{

+			TaskComplete();

+		}

+		break;

+

+	case TASK_STOP_MOVING:

+

+		//Stop turning

+		m_RollerController.m_vecAngular = vec3_origin;

+		

+		TaskComplete();

+		return;

+		break;

+

+	case TASK_WAIT_FOR_MOVEMENT:

+		{

+			// TASK_RUN_PATH and TASK_WALK_PATH work different on the rollermine and run until movement is done,

+			// so movement is already complete when entering this task.

+			TaskComplete();

+		}

+		break;

+

+	case TASK_WALK_PATH:

+	case TASK_RUN_PATH:

+		{

+			IPhysicsObject *pPhysicsObject = VPhysicsGetObject();

+

+			if ( pPhysicsObject == NULL )

+			{

+				assert(0);

+				TaskFail("Roller lost internal physics object?");

+				return;

+			}

+

+			pPhysicsObject->Wake();

+		}

+		break;

+

+	case TASK_ROLLERMINE_CHARGE_ENEMY:

+	case TASK_ROLLERMINE_RETURN_TO_PLAYER:

+		{

+			IPhysicsObject *pPhysicsObject = VPhysicsGetObject();

+			

+			if ( pPhysicsObject == NULL )

+			{

+				assert(0);

+				TaskFail("Roller lost internal physics object?");

+				return;

+			}

+			

+			pPhysicsObject->Wake();

+

+			m_flChargeTime = gpGlobals->curtime;

+		}

+

+		break;

+

+	case TASK_ROLLERMINE_GET_PATH_TO_FLEE:

+		{

+			// Find the nearest thing we're afraid of, and move away from it.

+			float flNearest = ROLLERMINE_FEAR_DISTANCE;

+			EHANDLE hNearestEnemy = NULL;

+			AIEnemiesIter_t iter;

+			for( AI_EnemyInfo_t *pEMemory = GetEnemies()->GetFirst( &iter ); pEMemory != NULL; pEMemory = GetEnemies()->GetNext( &iter ) )

+			{

+				CBaseEntity *pEnemy = pEMemory->hEnemy;

+				if ( !pEnemy || !pEnemy->IsAlive() )

+					continue;

+				if ( IRelationType( pEnemy ) != D_FR )

+					continue;			

+

+				float flDist = (WorldSpaceCenter() - pEnemy->WorldSpaceCenter()).LengthSqr();

+				if ( flDist < flNearest )

+				{

+					flNearest = flDist;

+					hNearestEnemy = pEnemy;

+				}

+			}

+

+			if ( !hNearestEnemy )

+			{

+				TaskFail("Couldn't find nearest feared object.");

+				break;

+			}

+

+			GetMotor()->SetIdealYawToTarget( hNearestEnemy->WorldSpaceCenter() );

+			ChainStartTask( TASK_MOVE_AWAY_PATH, pTask->flTaskData );

+		}

+		break;

+

+	case TASK_ROLLERMINE_NUDGE_TOWARDS_NODES:

+		{

+			IPhysicsObject *pPhysicsObject = VPhysicsGetObject();

+

+			if( pPhysicsObject )

+			{

+				// Try a few times to find a direction to shove ourself

+				for( int i = 0 ; i < 4 ; i++ )

+				{

+					int x,y;

+

+					x = random->RandomInt( -1, 1 );

+					y = random->RandomInt( -1, 1 );

+

+					Vector vecNudge(x, y, 0.0f);

+

+					trace_t tr;

+

+					// Try to move in a direction with a couple of feet of clearance.

+					UTIL_TraceLine( WorldSpaceCenter(), WorldSpaceCenter() + vecNudge * 24.0f, MASK_SHOT, this, COLLISION_GROUP_NONE, &tr );

+

+					if( tr.fraction == 1.0 )

+					{

+						vecNudge *= (pPhysicsObject->GetMass() * 75.0f);

+						vecNudge += Vector(0,0,pPhysicsObject->GetMass() * 75.0f);

+						pPhysicsObject->ApplyForceCenter( vecNudge );

+						break;

+					}

+				}

+			}

+

+			TaskComplete();

+		}

+		break;

+

+	case TASK_ROLLERMINE_POWERDOWN:

+		break;

+

+	default:

+		BaseClass::StartTask( pTask );

+		break;

+	}

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose:

+// Input  :

+// Output :

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::RunTask( const Task_t *pTask )

+{

+	switch( pTask->iTask )

+	{

+	case TASK_ROLLERMINE_UNBURROW:

+		{	

+			Vector	vCenter = WorldSpaceCenter();

+

+			// Robin: HACK: Bloat the rollermine check to catch the model switch (roller.mdl->roller_spikes.mdl)

+			trace_t	tr;

+			AI_TraceHull( vCenter, vCenter, Vector(-16,-16,-16), Vector(16,16,16), MASK_NPCSOLID, this, GetCollisionGroup(), &tr );

+

+			if ( tr.fraction == 1 && tr.allsolid != 1 && (tr.startsolid != 1) )

+			{

+				if ( BecomePhysical() )

+				{

+					Hop( 256 );

+					m_bBuried = false;

+					TaskComplete();

+					SetIdealState( NPC_STATE_ALERT );

+				}

+			}

+		}

+

+		return;

+		break;

+

+	case TASK_ROLLERMINE_BURIED_WAIT:

+		if ( HasCondition( COND_SEE_ENEMY ) || HasCondition( COND_LIGHT_DAMAGE ) )

+		{

+			TaskComplete();

+		}

+		break;

+

+	case TASK_ROLLERMINE_GET_PATH_TO_FLEE:

+		{

+			ChainRunTask( TASK_MOVE_AWAY_PATH, pTask->flTaskData );

+		}

+		break;

+

+	case TASK_WAIT_FOR_MOVEMENT:

+		{

+			// TASK_RUN_PATH and TASK_WALK_PATH work different on the rollermine and run until movement is done,

+			// so movement is already complete when entering this task.

+			TaskComplete();

+		}

+		break;

+

+	case TASK_RUN_PATH:

+	case TASK_WALK_PATH:

+

+		if ( m_bHeld || m_hVehicleStuckTo )

+		{

+			TaskFail( "Player interrupted by grabbing" );

+			break;

+		}

+

+		// If we were fleeing, but we've lost sight of the thing scaring us, stop

+		if ( IsCurSchedule(SCHED_ROLLERMINE_FLEE) && !HasCondition( COND_SEE_FEAR ) )

+		{

+			TaskComplete();

+			break;

+		}

+

+		if ( !GetNavigator()->IsGoalActive() )

+		{

+			TaskComplete();

+			return;

+		}

+

+		// Start turning early

+		if( (GetLocalOrigin() - GetNavigator()->GetCurWaypointPos() ).Length() <= 64 )

+		{

+			if( GetNavigator()->CurWaypointIsGoal() )

+			{

+				// Hit the brakes a bit.

+				float yaw = UTIL_VecToYaw( GetNavigator()->GetCurWaypointPos() - GetLocalOrigin() );

+				Vector vecRight;

+				AngleVectors( QAngle( 0, yaw, 0 ), NULL, &vecRight, NULL );

+

+				m_RollerController.m_vecAngular += WorldToLocalRotation( SetupMatrixAngles(GetLocalAngles()), vecRight, -m_flForwardSpeed * 5 );

+

+				TaskComplete();

+				return;

+			}

+

+			GetNavigator()->AdvancePath();	

+		}

+

+		{

+			float yaw = UTIL_VecToYaw( GetNavigator()->GetCurWaypointPos() - GetLocalOrigin() );

+

+			Vector vecRight;

+			Vector vecToPath; // points at the path

+			AngleVectors( QAngle( 0, yaw, 0 ), &vecToPath, &vecRight, NULL );

+

+			// figure out if the roller is turning. If so, cut the throttle a little.

+			float flDot;

+			Vector vecVelocity;

+

+			IPhysicsObject *pPhysicsObject = VPhysicsGetObject();

+			

+			if ( pPhysicsObject == NULL )

+			{

+				assert(0);

+				TaskFail("Roller lost internal physics object?");

+				return;

+			}

+			

+			pPhysicsObject->GetVelocity( &vecVelocity, NULL );

+

+			VectorNormalize( vecVelocity );

+

+			vecVelocity.z = 0;

+

+			flDot = DotProduct( vecVelocity, vecToPath );

+

+			m_RollerController.m_vecAngular = vec3_origin;

+

+			if( flDot > 0.25 && flDot < 0.7 )

+			{

+				// Feed a little torque backwards into the axis perpendicular to the velocity.

+				// This will help get rid of momentum that would otherwise make us overshoot our goal.

+				Vector vecCompensate;

+

+				vecCompensate.x = vecVelocity.y;

+				vecCompensate.y = -vecVelocity.x;

+				vecCompensate.z = 0;

+

+				m_RollerController.m_vecAngular = WorldToLocalRotation( SetupMatrixAngles(GetLocalAngles()), vecCompensate, m_flForwardSpeed * -0.75 );

+			}

+

+			if( m_bHackedByAlyx )

+			{

+				// Move faster. 

+				m_RollerController.m_vecAngular += WorldToLocalRotation( SetupMatrixAngles(GetLocalAngles()), vecRight, m_flForwardSpeed * 2.0f );

+			}

+			else

+			{

+				m_RollerController.m_vecAngular += WorldToLocalRotation( SetupMatrixAngles(GetLocalAngles()), vecRight, m_flForwardSpeed );

+			}

+		}

+		break;

+

+	case TASK_ROLLERMINE_CHARGE_ENEMY:

+		{

+			if ( !GetEnemy() )

+			{

+				TaskFail( FAIL_NO_ENEMY );

+				break;

+			}

+

+			if ( m_bHeld || m_hVehicleStuckTo )

+			{

+				TaskComplete();

+				break;

+			}

+

+			CBaseEntity *pEnemy = GetEnemy();

+			Vector vecTargetPosition = pEnemy->GetAbsOrigin();

+

+			// If we're chasing a vehicle, try and get ahead of it

+			if ( EnemyInVehicle() )

+			{

+				CBaseCombatCharacter *pCCEnemy = pEnemy->MyCombatCharacterPointer();

+				float flT;

+

+				// Project it's velocity and find our closest point on that line. Do it all in 2d space.

+				Vector vecVehicleVelocity = pCCEnemy->GetVehicleEntity()->GetSmoothedVelocity();

+				Vector vecProjected = vecTargetPosition + (vecVehicleVelocity * 1.0);

+				Vector2D vecProjected2D( vecProjected.x, vecProjected.y );

+				Vector2D vecTargetPosition2D( vecTargetPosition.x, vecTargetPosition.y );

+				Vector2D vecOrigin2D( GetAbsOrigin().x, GetAbsOrigin().y );

+				Vector2D vecIntercept2D;

+

+				CalcClosestPointOnLine2D( vecOrigin2D, vecTargetPosition2D, vecProjected2D, vecIntercept2D, &flT );

+				Vector vecIntercept( vecIntercept2D.x, vecIntercept2D.y, GetAbsOrigin().z );

+				

+				//NDebugOverlay::Line( vecTargetPosition, vecProjected, 0,255,0, true, 0.1 );

+

+				// If we're ahead of the line somewhere, try to intercept

+				if ( flT > 0 )

+				{

+					// If it's beyond the end of the intercept line, just move towards the end of the line

+					if ( flT > 1 )

+					{

+						vecIntercept.x = vecProjected.x;

+						vecIntercept.y = vecProjected.y;

+					}

+

+					// If we're closer to the intercept point than to the vehicle, move towards the intercept

+					if ( (GetAbsOrigin() - vecTargetPosition).LengthSqr() > (GetAbsOrigin() - vecIntercept).LengthSqr() )

+					{

+						//NDebugOverlay::Box( vecIntercept, -Vector(20,20,20), Vector(20,20,20), 255,0,0, 0.1, 0.1 );

+

+						// Only use this position if it's clear

+						if ( enginetrace->GetPointContents( vecIntercept ) != CONTENTS_SOLID )

+						{

+							vecTargetPosition = vecIntercept;

+						}

+					}

+				}

+

+				//NDebugOverlay::Box( vecTargetPosition, -Vector(20,20,20), Vector(20,20,20), 255,255,255, 0.1, 0.1 );

+			}

+

+			float flTorqueFactor;

+			Vector vecToTarget = vecTargetPosition - GetLocalOrigin();

+			float yaw = UTIL_VecToYaw( vecToTarget );

+			Vector vecRight;

+

+			AngleVectors( QAngle( 0, yaw, 0 ), NULL, &vecRight, NULL );

+

+			//NDebugOverlay::Line( GetLocalOrigin(), GetLocalOrigin() + (GetEnemy()->GetLocalOrigin() - GetLocalOrigin()), 0,255,0, true, 0.1 );

+

+			float flDot;

+

+			// Figure out whether to continue the charge.

+			// (Have I overrun the target?)			

+			IPhysicsObject *pPhysicsObject = VPhysicsGetObject();

+

+			if ( pPhysicsObject == NULL )

+			{

+//				Assert(0);

+				TaskFail("Roller lost internal physics object?");

+				return;

+			}

+

+			Vector vecVelocity;

+			pPhysicsObject->GetVelocity( &vecVelocity, NULL );

+			VectorNormalize( vecVelocity );

+

+			VectorNormalize( vecToTarget );

+

+			flDot = DotProduct( vecVelocity, vecToTarget );

+

+			// more torque the longer the roller has been going.

+			flTorqueFactor = 1 + (gpGlobals->curtime - m_flChargeTime) * 2;

+

+			float flMaxTorque = ROLLERMINE_MAX_TORQUE_FACTOR;

+			

+			// Friendly rollermines go a little slower

+			if ( HasSpawnFlags( SF_ROLLERMINE_FRIENDLY ) )

+			{

+				flMaxTorque *= 0.75;

+			}

+

+			if( flTorqueFactor < 1 )

+			{

+				flTorqueFactor = 1;

+			}

+			else if( flTorqueFactor > flMaxTorque)

+			{

+				flTorqueFactor = flMaxTorque;

+			}

+

+			Vector vecCompensate;

+

+			vecCompensate.x = vecVelocity.y;

+			vecCompensate.y = -vecVelocity.x;

+			vecCompensate.z = 0;

+			VectorNormalize( vecCompensate );

+

+			m_RollerController.m_vecAngular = WorldToLocalRotation( SetupMatrixAngles(GetLocalAngles()), vecCompensate, m_flForwardSpeed * -0.75 );

+			m_RollerController.m_vecAngular += WorldToLocalRotation( SetupMatrixAngles(GetLocalAngles()), vecRight, m_flForwardSpeed  * flTorqueFactor );

+		

+			// Taunt when I get closer

+			if( !(m_iSoundEventFlags & ROLLERMINE_SE_TAUNT) && UTIL_DistApprox( GetLocalOrigin(), vecTargetPosition ) <= 400 )

+			{

+				m_iSoundEventFlags |= ROLLERMINE_SE_TAUNT; // Don't repeat.

+

+				EmitSound( "NPC_RollerMine.Taunt" );

+			}

+

+			// Jump earlier when chasing a vehicle

+			float flThreshold = ROLLERMINE_OPEN_THRESHOLD;

+			if ( EnemyInVehicle() )

+			{

+				flThreshold = ROLLERMINE_VEHICLE_OPEN_THRESHOLD;

+			}

+

+			// Open the spikes if i'm close enough to cut the enemy!!

+  			if( ( m_bIsOpen == false ) && ( ( UTIL_DistApprox( GetAbsOrigin(), GetEnemy()->GetAbsOrigin() ) <= flThreshold ) || !IsActive() ) )

+			{

+				Open();

+			}

+			else if ( m_bIsOpen )

+			{

+				float flDistance = UTIL_DistApprox( GetAbsOrigin(), GetEnemy()->GetAbsOrigin() );

+				if ( flDistance >= flThreshold )

+				{

+					// Otherwise close them if the enemy is getting away!

+					Close();

+				}

+				else if ( EnemyInVehicle() && flDistance < ROLLERMINE_VEHICLE_HOP_THRESHOLD )

+				{

+					// Keep trying to hop when we're ramming a vehicle, so we're visible to the player

+					if ( vecVelocity.x != 0 && vecVelocity.y != 0 && flTorqueFactor > 3 && flDot > 0.0 )

+					{

+						Hop( 300 );

+					}

+				}

+			}

+

+			// If we drive past, close the blades and make a new plan.

+			if ( !EnemyInVehicle() )

+			{

+				if( vecVelocity.x != 0 && vecVelocity.y != 0 )

+				{

+					if( gpGlobals->curtime - m_flChargeTime > 1.0 && flTorqueFactor > 1 &&  flDot < 0.0 )

+					{

+						if( m_bIsOpen )

+						{

+							Close();

+						}

+

+						TaskComplete();

+					}

+				}

+			}

+		}

+		break;

+

+	case TASK_ROLLERMINE_RETURN_TO_PLAYER:

+		{

+			if ( ConditionsGathered() && !HasCondition(COND_SEE_PLAYER) )

+			{

+				TaskFail( FAIL_NO_PLAYER );

+				return;

+			}

+

+			CBaseEntity *pPlayer = gEntList.FindEntityByName( NULL, "!player" );

+			if ( !pPlayer || m_bHeld || m_hVehicleStuckTo )

+			{

+				TaskFail( FAIL_NO_TARGET );

+				return;

+			}

+

+			Vector vecTargetPosition = pPlayer->GetAbsOrigin();

+			float flTorqueFactor;

+			Vector vecToTarget = vecTargetPosition - GetLocalOrigin();

+			float yaw = UTIL_VecToYaw( vecToTarget );

+			Vector vecRight;

+

+			AngleVectors( QAngle( 0, yaw, 0 ), NULL, &vecRight, NULL );

+

+			float flDot;

+

+			IPhysicsObject *pPhysicsObject = VPhysicsGetObject();

+			if ( pPhysicsObject == NULL )

+			{

+				TaskFail("Roller lost internal physics object?");

+				return;

+			}

+

+			Vector vecVelocity;

+			pPhysicsObject->GetVelocity( &vecVelocity, NULL );

+			VectorNormalize( vecVelocity );

+			VectorNormalize( vecToTarget );

+

+			flDot = DotProduct( vecVelocity, vecToTarget );

+

+			// more torque the longer the roller has been going.

+			flTorqueFactor = 1 + (gpGlobals->curtime - m_flChargeTime) * 2;

+

+			float flMaxTorque = ROLLERMINE_MAX_TORQUE_FACTOR * 0.75;

+			if( flTorqueFactor < 1 )

+			{

+				flTorqueFactor = 1;

+			}

+			else if( flTorqueFactor > flMaxTorque)

+			{

+				flTorqueFactor = flMaxTorque;

+			}

+

+			Vector vecCompensate;

+

+			vecCompensate.x = vecVelocity.y;

+			vecCompensate.y = -vecVelocity.x;

+			vecCompensate.z = 0;

+			VectorNormalize( vecCompensate );

+

+			m_RollerController.m_vecAngular = WorldToLocalRotation( SetupMatrixAngles(GetLocalAngles()), vecCompensate, m_flForwardSpeed * -0.75 );

+			m_RollerController.m_vecAngular += WorldToLocalRotation( SetupMatrixAngles(GetLocalAngles()), vecRight, m_flForwardSpeed  * flTorqueFactor );

+

+			// Once we're near the player, slow & stop

+			if ( GetAbsOrigin().DistToSqr( vecTargetPosition ) < (ROLLERMINE_RETURN_TO_PLAYER_DIST*2.0) )

+			{

+				TaskComplete();

+			}

+		}

+		break;

+

+	case TASK_ROLLERMINE_POWERDOWN:

+		{

+			if ( m_flPowerDownTime <= gpGlobals->curtime )

+			{

+				m_flNextHop = gpGlobals->curtime;

+				m_flPowerDownTime = gpGlobals->curtime + RandomFloat( 0.3, 0.9 );

+				EmitSound( "NPC_RollerMine.Hurt" );

+

+				CSoundEnt::InsertSound ( SOUND_DANGER, GetAbsOrigin(), 400, 0.5f, this );

+

+				if ( m_bIsOpen == false )

+				{

+					Open();

+				}

+				else

+				{

+					Close();

+				}

+			}

+

+			if ( m_flPowerDownDetonateTime <= gpGlobals->curtime )

+			{

+				SetThink( &CNPC_RollerMine::PreDetonate );

+				SetNextThink( gpGlobals->curtime + 0.5f );

+			}

+

+			// No TaskComplete() here, because the task will never complete. The rollermine will explode.

+		}

+		break;	

+

+	default:

+		BaseClass::RunTask( pTask );

+		break;

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose:

+// Input  :

+// Output :

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::Open( void )

+{

+	// Friendly rollers cannot open

+	if ( HasSpawnFlags( SF_ROLLERMINE_FRIENDLY ) )

+		return;

+

+	if ( m_bIsOpen == false )

+	{

+		SetModel( "models/roller_spikes.mdl" );

+        SetRollerSkin();

+

+		EmitSound( "NPC_RollerMine.OpenSpikes" );

+

+		SetTouch( &CNPC_RollerMine::ShockTouch );

+		m_bIsOpen = true;

+

+		// Don't hop if we're constrained

+		if ( !m_pConstraint )

+		{

+			if ( EnemyInVehicle() )

+			{

+				Hop( 256 );

+			}

+			else if ( !GetEnemy() || GetEnemy()->Classify() != CLASS_BULLSEYE )		// Don't hop when attacking bullseyes

+			{

+				Hop( 128 );

+			}

+		}

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose:

+// Input  :

+// Output :

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::SetRollerSkin( void )

+{

+	if ( m_bPowerDown == true )

+	{

+		m_nSkin = (int)ROLLER_SKIN_DETONATE;

+	}

+	else if ( m_bHackedByAlyx == true )

+	{

+		m_nSkin = (int)ROLLER_SKIN_FRIENDLY;

+	}

+	else

+	{

+		m_nSkin = (int)ROLLER_SKIN_REGULAR;

+	}

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose:

+// Input  :

+// Output :

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::Close( void )

+{

+	// Not allowed to close while primed, because we're going to detonate on touch

+	if ( m_bIsPrimed )

+		return;

+

+	if ( m_bIsOpen && !IsShocking() )

+	{

+		SetModel( "models/roller.mdl" );

+

+		SetRollerSkin();

+

+		SetTouch( NULL );

+		m_bIsOpen = false;

+

+		m_iSoundEventFlags = ROLLERMINE_SE_CLEAR;

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose:

+// Input  :

+// Output :

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::SpikeTouch( CBaseEntity *pOther )

+{

+	/*

+	if ( pOther->IsSolidFlagSet(FSOLID_TRIGGER | FSOLID_VOLUME_CONTENTS) )

+		return;

+

+	if ( m_bHeld )

+		return;

+

+	if ( pOther->IsPlayer() )

+		return;

+

+	if ( pOther->m_takedamage != DAMAGE_YES )

+		return;

+

+	// If we just hit a breakable glass object, don't explode. We want to blow through it.

+	CBreakable *pBreakable = dynamic_cast<CBreakable*>(pOther);

+	if ( pBreakable && pBreakable->GetMaterialType() == matGlass )

+		return;

+

+	Explode();

+	EmitSound( "NPC_RollerMine.Warn" );

+	*/

+

+	//FIXME: Either explode within certain rules, never explode, or just shock the hit victim

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::CloseTouch( CBaseEntity *pOther )

+{

+	if ( pOther->IsSolidFlagSet(FSOLID_TRIGGER | FSOLID_VOLUME_CONTENTS) )

+		return;

+

+	if ( IsShocking() )

+		return;

+

+	bool bOtherIsDead = ( pOther->MyNPCPointer() && !pOther->MyNPCPointer()->IsAlive() );

+	bool bOtherIsNotarget = ( ( pOther->GetFlags() & FL_NOTARGET ) != 0 );

+

+	if ( !bOtherIsDead && !bOtherIsNotarget )

+	{

+		Disposition_t disp = IRelationType(pOther);

+

+		if ( (disp == D_HT || disp == D_FR) )

+		{

+			ShockTouch( pOther );

+			return;

+		}

+	}

+

+	Close();

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::EmbedTouch( CBaseEntity *pOther )

+{

+	if ( pOther->IsSolidFlagSet(FSOLID_TRIGGER | FSOLID_VOLUME_CONTENTS) )

+		return;

+

+	m_bEmbedOnGroundImpact = false;

+

+	// Did we hit the world?

+	if ( pOther->entindex() == 0 )

+	{

+		m_bBuried = true;

+		trace_t tr;

+		Bury( &tr );

+

+		// Destroy out physics object and become static

+		VPhysicsDestroyObject();

+		CreateVPhysics();

+

+		// Drop a decal on the ground where we impacted

+		UTIL_DecalTrace( &tr, "Rollermine.Crater" );

+

+		// Make some dust

+		UTIL_CreateAntlionDust( tr.endpos, GetLocalAngles() );

+	}

+

+	// Don't try and embed again

+	SetTouch( NULL );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+bool CNPC_RollerMine::IsPlayerVehicle( CBaseEntity *pEntity )

+{

+	IServerVehicle *pVehicle = pEntity->GetServerVehicle();

+	if ( pVehicle )

+	{

+		CBasePlayer *pPlayer = ToBasePlayer( pVehicle->GetPassenger() );

+		if ( pPlayer != NULL )

+		{

+			Disposition_t disp = IRelationType(pPlayer);

+

+			if ( disp == D_HT || disp == D_FR )

+				return true;

+		}

+	}

+

+	return false;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *pVictim - 

+// Output : float

+//-----------------------------------------------------------------------------

+float CNPC_RollerMine::GetAttackDamageScale( CBaseEntity *pVictim )

+{

+	// If we're friendly, don't damage players or player-friendly NPCs, even with collisions

+	if ( HasSpawnFlags( SF_ROLLERMINE_FRIENDLY ) )

+	{

+		if ( pVictim->IsPlayer() )

+			return 0;

+		

+		if ( pVictim->MyNPCPointer() )

+		{

+			// If we don't hate the player, we're immune

+			CBasePlayer *pPlayer = UTIL_PlayerByIndex(1);

+			if ( pPlayer && pVictim->MyNPCPointer()->IRelationType( pPlayer ) != D_HT )

+				return 0.0;

+		}

+	}

+

+	return BaseClass::GetAttackDamageScale( pVictim );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *pOther - 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::ShockTarget( CBaseEntity *pOther )

+{

+	CBeam *pBeam;

+

+	if( m_bHackedByAlyx )

+	{

+		pBeam = CBeam::BeamCreate( "sprites/rollermine_shock_yellow.vmt", 4 );

+	}

+	else

+	{

+		pBeam = CBeam::BeamCreate( "sprites/rollermine_shock.vmt", 4 );

+	}

+

+	int startAttach = -1;

+

+	CBaseAnimating *pAnimating = dynamic_cast<CBaseAnimating *>(pOther);

+

+	if ( pBeam != NULL )

+	{

+		pBeam->EntsInit( pOther, this );

+

+		if ( pAnimating && pAnimating->GetModel() )

+		{

+			startAttach = pAnimating->LookupAttachment("beam_damage" );

+			pBeam->SetStartAttachment( startAttach );

+		}

+

+		// Change this up a little for first person hits

+		if ( pOther->IsPlayer() )

+		{

+			pBeam->SetEndWidth( 8 );

+			pBeam->SetNoise( 4 );

+			pBeam->LiveForTime( 0.2f );

+		}

+		else

+		{

+			pBeam->SetEndWidth( 16 );

+			pBeam->SetNoise( 16 );

+			pBeam->LiveForTime( 0.5f );

+		}

+		

+		pBeam->SetEndAttachment( 1 );

+		pBeam->SetWidth( 1 );

+		pBeam->SetBrightness( 255 );

+		pBeam->SetColor( 255, 255, 255 );

+		pBeam->RelinkBeam();

+	}

+	

+	Vector shockPos = pOther->WorldSpaceCenter();

+

+	if ( startAttach > 0 && pAnimating )

+	{

+		pAnimating->GetAttachment( startAttach, shockPos );

+	}

+

+	Vector shockDir = ( GetAbsOrigin() - shockPos );

+	VectorNormalize( shockDir );

+

+	CPVSFilter filter( shockPos );

+	te->GaussExplosion( filter, 0.0f, shockPos, shockDir, 0 );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::NotifyInteraction( CAI_BaseNPC *pUser )

+{

+	// For now, turn green so we can tell who is hacked.

+	m_bHackedByAlyx = true; 

+	SetRollerSkin();

+	GetEnemies()->SetFreeKnowledgeDuration( 30.0f );

+

+	// Play the hax0red sound

+	EmitSound( "NPC_RollerMine.Reprogram" );

+

+	// Force the rollermine open here. At very least, this ensures that the 

+	// correct, smaller bounding box is recomputed around it.

+	Open();

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::ShockTouch( CBaseEntity *pOther )

+{

+	if ( pOther->IsSolidFlagSet(FSOLID_TRIGGER | FSOLID_VOLUME_CONTENTS) )

+		return;

+

+	if ( m_bHeld || m_hVehicleStuckTo || gpGlobals->curtime < m_flShockTime )

+		return;

+

+	// error?

+	Assert( !m_bIsPrimed );

+

+	Disposition_t disp = IRelationType(pOther);

+

+	// Ignore anyone that I'm friendly or neutral to.

+	if( disp != D_HT && disp != D_FR)

+		return;

+

+	IPhysicsObject *pPhysics = VPhysicsGetObject();

+

+	// Calculate a collision force

+	Vector impulse = WorldSpaceCenter() - pOther->WorldSpaceCenter();

+	impulse.z = 0;

+	VectorNormalize( impulse );

+	impulse.z = 0.75;

+	VectorNormalize( impulse );

+	impulse *= 600;

+

+	// Stun the roller

+	m_flActiveTime = gpGlobals->curtime + GetStunDelay();

+

+	// If we're a 'friendly' rollermine, just push the player a bit

+	if ( HasSpawnFlags( SF_ROLLERMINE_FRIENDLY ) )

+	{

+		if ( pOther->IsPlayer() )

+		{

+			Vector vecForce = -impulse * 0.5;

+			pOther->ApplyAbsVelocityImpulse( vecForce );

+		}

+		return;

+	}

+

+	// jump up at a 30 degree angle away from the guy we hit

+	SetTouch( &CNPC_RollerMine::CloseTouch );

+	Vector vel;

+	pPhysics->SetVelocity( &impulse, NULL );

+	EmitSound( "NPC_RollerMine.Shock" );

+	// Do a shock effect

+	ShockTarget( pOther );

+

+	m_flShockTime = gpGlobals->curtime + 1.25;

+

+	// Calculate physics force

+	Vector out;

+	pOther->CollisionProp()->CalcNearestPoint( WorldSpaceCenter(), &out );

+

+	Vector vecForce = ( -impulse * pPhysics->GetMass() * 10 );

+	CTakeDamageInfo	info( this, this, vecForce, out, sk_rollermine_shock.GetFloat(), DMG_SHOCK );

+

+	if( FClassnameIs( pOther, "npc_combine_s" ) )

+	{

+		if( pOther->GetHealth() <= (pOther->GetMaxHealth() / 2) ) 

+		{

+			// Instant special death for a combine soldier who has less than half health.

+			Vector vecDamageForce = pOther->WorldSpaceCenter() - WorldSpaceCenter();

+			VectorNormalize( vecDamageForce );

+

+			IPhysicsObject *pPhysics = pOther->VPhysicsGetObject();

+

+			if( pPhysics )

+			{

+				vecDamageForce *= (pPhysics->GetMass() * 200.0f);

+

+				// Slam Z component with some good, reliable upwards velocity.

+				vecDamageForce.z = pPhysics->GetMass() * 200.0f;

+			}

+

+			pOther->MyCombatCharacterPointer()->BecomeRagdollBoogie( this, vecDamageForce, 5.0f, SF_RAGDOLL_BOOGIE_ELECTRICAL );

+			return;

+		}

+		else

+		{

+			info.SetDamage( pOther->GetMaxHealth()/2 );

+		}

+	}

+

+	pOther->TakeDamage( info );

+

+	// Knock players back a bit

+	if ( pOther->IsPlayer() )

+	{

+		vecForce = -impulse;

+		pOther->ApplyAbsVelocityImpulse( vecForce );

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::VPhysicsCollision( int index, gamevcollisionevent_t *pEvent )

+{

+	// Make sure we don't keep hitting the same entity

+	int otherIndex = !index;

+	CBaseEntity *pOther = pEvent->pEntities[otherIndex];

+	if ( pEvent->deltaCollisionTime < 0.5 && (pOther == this) )

+		return;

+

+	BaseClass::VPhysicsCollision( index, pEvent );

+

+	// If we've just hit a vehicle, we want to stick to it

+	if ( m_bHeld || m_hVehicleStuckTo || !IsPlayerVehicle( pOther ) )

+	{

+		// Are we supposed to be embedding ourselves?

+		if ( m_bEmbedOnGroundImpact )

+		{

+			// clear the flag so we don't queue more than once

+			m_bEmbedOnGroundImpact = false;

+			// call this when physics is done

+			g_PostSimulationQueue.QueueCall( this, &CNPC_RollerMine::EmbedTouch, pOther );

+		}

+		return;

+	}

+

+	StickToVehicle( pOther );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *pOther - 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::StickToVehicle( CBaseEntity *pOther )

+{

+	IPhysicsObject *pOtherPhysics = pOther->VPhysicsGetObject();

+	if ( !pOtherPhysics )

+		return;

+

+	// Don't stick to the wheels

+	if ( pOtherPhysics->GetCallbackFlags() & CALLBACK_IS_VEHICLE_WHEEL )

+		return;

+

+	// Destroy our constraint. This can happen if we had our constraint broken

+	// and we still haven't cleaned up our constraint.

+	UnstickFromVehicle();

+

+	// We've hit the vehicle that the player's in.

+	// Stick to it and slow it down.

+	m_hVehicleStuckTo = pOther;

+

+	IPhysicsObject *pPhysics = VPhysicsGetObject();

+

+	// Constrain us to the vehicle

+	constraint_fixedparams_t fixed;

+	fixed.Defaults();

+	fixed.InitWithCurrentObjectState( pOtherPhysics, pPhysics );

+	fixed.constraint.Defaults();

+	fixed.constraint.forceLimit	= ImpulseScale( pPhysics->GetMass(), 200 );

+	fixed.constraint.torqueLimit = ImpulseScale( pPhysics->GetMass(), 800 );

+	m_pConstraint = physenv->CreateFixedConstraint( pOtherPhysics, pPhysics, NULL, fixed );

+	m_pConstraint->SetGameData( (void *)this );

+

+	// Kick the vehicle so the player knows we've arrived

+	Vector impulse = pOther->GetAbsOrigin() - GetAbsOrigin();

+	VectorNormalize( impulse );

+	impulse.z = -0.75;

+	VectorNormalize( impulse );

+	impulse *= 600;

+	Vector vecForce = impulse * pPhysics->GetMass() * 10;

+	pOtherPhysics->ApplyForceOffset( vecForce, GetAbsOrigin() );

+

+	// Get the velocity at the point we're sticking to

+	Vector vecVelocity;

+	pOtherPhysics->GetVelocityAtPoint( GetAbsOrigin(), &vecVelocity );

+	AngularImpulse angNone( 0.0f, 0.0f, 0.0f );

+	pPhysics->SetVelocity( &vecVelocity, &angNone );

+

+	// Make sure we're spiky

+	Open();

+

+	AnnounceArrivalToOthers( pOther );

+

+	// Also, jolt the vehicle sometime in the future

+	g_EventQueue.AddEvent( this, "JoltVehicle", RandomFloat(3,6), NULL, NULL );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+int CNPC_RollerMine::CountRollersOnMyVehicle( CUtlVector<CNPC_RollerMine*> *pRollerList )

+{

+	CBaseEntity *entityList[64];

+	Vector range(256,256,256);

+	pRollerList->AddToTail( this );

+	int boxCount = UTIL_EntitiesInBox( entityList, ARRAYSIZE(entityList), GetAbsOrigin()-range, GetAbsOrigin()+range, FL_NPC );

+	for ( int i = 0; i < boxCount; i++ )

+	{

+		CAI_BaseNPC *pNPC = entityList[i]->MyNPCPointer();

+		if ( pNPC && pNPC->m_iClassname == m_iClassname && pNPC != this )

+		{

+			// Found another rollermine

+			CNPC_RollerMine *pMine = dynamic_cast<CNPC_RollerMine*>(pNPC);

+			Assert( pMine );

+

+			// Is he stuck to the same vehicle?

+			if ( pMine->GetVehicleStuckTo() == GetVehicleStuckTo() )

+			{

+				pRollerList->AddToTail( pMine );

+			}

+		}

+	}

+

+	return pRollerList->Count();

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Tell other rollermines on the vehicle that I've just arrived

+// Input  : *pOther - 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::AnnounceArrivalToOthers( CBaseEntity *pOther )

+{

+	// Now talk to any other rollermines stuck to the same vehicle

+	CUtlVector<CNPC_RollerMine*> aRollersOnVehicle;

+	int iRollers = CountRollersOnMyVehicle( &aRollersOnVehicle );

+

+	// Stop all rollers on the vehicle falling off due to the force of the arriving one

+	for ( int i = 0; i < iRollers; i++ )

+	{

+		aRollersOnVehicle[i]->PreventUnstickUntil( gpGlobals->curtime + 1 );

+	}

+

+	// See if we've got enough rollers on the vehicle to start being mean

+	/*

+	if ( iRollers >= ROLLERMINE_REQUIRED_TO_EXPLODE_VEHICLE )

+	{

+		// Alert the others

+		EmitSound( "NPC_RollerMine.ExplodeChirp" );

+

+		// Tell everyone to explode shortly

+		for ( int i = 0; i < iRollers; i++ )

+		{

+			variant_t emptyVariant;

+			g_EventQueue.AddEvent( aRollersOnVehicle[i], "RespondToExplodeChirp", RandomFloat(2,5), NULL, NULL );

+		}

+	}

+	else 

+	{

+	*/

+	// If there's other rollers on the vehicle, talk to them

+	if ( iRollers > 1 )

+	{

+		// Chirp to the others

+		EmitSound( "NPC_RollerMine.Chirp" );

+

+		// Tell the others to respond (skip first slot, because that's me)

+		for ( int i = 1; i < iRollers; i++ )

+		{

+			variant_t emptyVariant;

+			g_EventQueue.AddEvent( aRollersOnVehicle[i], "RespondToChirp", RandomFloat(2,3), NULL, NULL );

+		}

+	}

+//	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Physics system has just told us our constraint has been broken

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::InputConstraintBroken( inputdata_t &inputdata )

+{

+	// Prevent rollermines being dislodged right as they stick

+	if ( m_flPreventUnstickUntil > gpGlobals->curtime )

+		return;

+

+	// We can't delete it here safely

+	UnstickFromVehicle();

+	Close();

+

+	// dazed

+	m_RollerController.m_vecAngular.Init();

+	m_flActiveTime = gpGlobals->curtime + GetStunDelay();

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Respond to another rollermine that's chirped at us

+// Input  : &inputdata - 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::InputRespondToChirp( inputdata_t &inputdata )

+{

+	EmitSound( "NPC_RollerMine.ChirpRespond" );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Respond to another rollermine's signal to detonate

+// Input  : &inputdata - 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::InputRespondToExplodeChirp( inputdata_t &inputdata )

+{

+	EmitSound( "NPC_RollerMine.ExplodeChirpRespond" );

+

+	Explode();

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Apply a physics force to the vehicle we're in

+// Input  : &inputdata - 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::InputJoltVehicle( inputdata_t &inputdata )

+{

+	Assert( GetVehicleStuckTo() );

+

+	// First, tell all rollers on the vehicle not to fall off

+	CUtlVector<CNPC_RollerMine*> aRollersOnVehicle;

+	int iRollers = CountRollersOnMyVehicle( &aRollersOnVehicle );

+	for ( int i = 0; i < iRollers; i++ )

+	{

+		aRollersOnVehicle[i]->PreventUnstickUntil( gpGlobals->curtime + 1 );

+	}

+

+	// Now smack the vehicle

+	Vector impulse = GetVehicleStuckTo()->GetAbsOrigin() - GetAbsOrigin();

+	VectorNormalize( impulse );

+	// Randomly apply a little vertical lift, to get the wheels off the ground

+	impulse.z = RandomFloat( 0.5, 1.0 );

+	VectorNormalize( impulse );

+	IPhysicsObject *pVehiclePhysics = GetVehicleStuckTo()->VPhysicsGetObject();

+	Vector vecForce = impulse * ImpulseScale( pVehiclePhysics->GetMass(), RandomFloat(150,250) );

+	pVehiclePhysics->ApplyForceOffset( vecForce, GetAbsOrigin() );

+

+	// Play sounds & effects

+	EmitSound( "NPC_RollerMine.JoltVehicle" );

+

+	// UNDONE: Good Zap effects

+	/*

+	CBeam *pBeam = CBeam::BeamCreate( "sprites/rollermine_shock.vmt", 4 );

+	if ( pBeam )

+	{

+		pBeam->EntsInit( GetVehicleStuckTo(), this );

+		CBaseAnimating *pAnimating = dynamic_cast<CBaseAnimating *>( GetVehicleStuckTo() );

+		if ( pAnimating )

+		{

+			int startAttach = pAnimating->LookupAttachment("beam_damage" );

+			pBeam->SetStartAttachment( startAttach );

+		}

+		pBeam->SetEndAttachment( 1 );

+		pBeam->SetWidth( 8 );

+		pBeam->SetEndWidth( 8 );

+		pBeam->SetBrightness( 255 );

+		pBeam->SetColor( 255, 255, 255 );

+		pBeam->LiveForTime( 0.5f );

+		pBeam->RelinkBeam();

+		pBeam->SetNoise( 30 );

+	}

+	*/

+

+	ShockTarget( GetVehicleStuckTo() );

+

+	// Jolt again soon

+	g_EventQueue.AddEvent( this, "JoltVehicle", RandomFloat(3,6), NULL, NULL );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : &inputdata - 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::InputTurnOn( inputdata_t &inputdata )

+{

+	m_RollerController.On();

+	m_bTurnedOn = true;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : &inputdata - 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::InputTurnOff( inputdata_t &inputdata )

+{

+	m_RollerController.Off();

+	m_bTurnedOn = false;

+	StopLoopingSounds();

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : &inputdata - 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::InputPowerdown( inputdata_t &inputdata )

+{

+	m_bPowerDown = true;

+	m_flPowerDownTime = gpGlobals->curtime + RandomFloat( 0.1, 0.5 );

+	m_flPowerDownDetonateTime = m_flPowerDownTime + RandomFloat( 1.5, 4.0 );

+

+	ClearSchedule( "Received power down input" );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: If we were stuck to a vehicle, remove ourselves

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::UnstickFromVehicle( void )

+{

+	if ( m_pConstraint )

+	{

+		physenv->DestroyConstraint( m_pConstraint );

+		m_pConstraint = NULL;

+	}

+

+	// Cancel any pending jolt events

+	g_EventQueue.CancelEventOn( this, "JoltVehicle" );

+

+	m_hVehicleStuckTo = NULL;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+CBaseEntity *CNPC_RollerMine::GetVehicleStuckTo( void )

+{

+	if ( !m_pConstraint )

+		return NULL;

+

+	return m_hVehicleStuckTo;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *pPhysGunUser - 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::OnPhysGunPickup( CBasePlayer *pPhysGunUser, PhysGunPickup_t reason )

+{

+	// Are we just being punted?

+	if ( reason == PUNTED_BY_CANNON )

+	{

+		// Be stunned

+		m_flActiveTime = gpGlobals->curtime + GetStunDelay();

+		return;

+	}

+

+	//Stop turning

+	m_RollerController.m_vecAngular = vec3_origin;

+

+	UnstickFromVehicle();

+

+	m_OnPhysGunPickup.FireOutput( pPhysGunUser, this );

+	m_bHeld = true;

+	m_RollerController.Off();

+	EmitSound( "NPC_RollerMine.Held" );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *pPhysGunUser - 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::OnPhysGunDrop( CBasePlayer *pPhysGunUser, PhysGunDrop_t Reason )

+{

+	m_bHeld = false;

+	m_flActiveTime = gpGlobals->curtime + GetStunDelay();

+	m_RollerController.On();

+	

+	// explode on contact if launched from the physgun

+	if ( Reason == LAUNCHED_BY_CANNON )

+	{

+		if ( m_bIsOpen )

+		{

+			//m_bIsPrimed = true;

+			SetTouch( &CNPC_RollerMine::SpikeTouch );

+			// enable world/prop touch too

+			VPhysicsGetObject()->SetCallbackFlags( VPhysicsGetObject()->GetCallbackFlags() | CALLBACK_GLOBAL_TOUCH|CALLBACK_GLOBAL_TOUCH_STATIC );

+		}

+		EmitSound( "NPC_RollerMine.Tossed" );

+	}

+

+	m_OnPhysGunDrop.FireOutput( pPhysGunUser, this );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : &info - 

+// Output : float

+//-----------------------------------------------------------------------------

+int CNPC_RollerMine::OnTakeDamage( const CTakeDamageInfo &info )

+{

+	if ( !(info.GetDamageType() & DMG_BURN) )

+	{

+		if ( GetMoveType() == MOVETYPE_VPHYSICS )

+		{

+			AngularImpulse	angVel;

+			angVel.Random( -400.0f, 400.0f );

+			VPhysicsGetObject()->AddVelocity( NULL, &angVel );

+			m_RollerController.m_vecAngular *= 0.8f;

+

+			VPhysicsTakeDamage( info );

+		}

+		SetCondition( COND_LIGHT_DAMAGE );

+	}

+

+	if ( info.GetDamageType() & (DMG_BURN|DMG_BLAST) )

+	{

+		if ( info.GetAttacker() && info.GetAttacker()->m_iClassname != m_iClassname )

+		{

+			SetThink( &CNPC_RollerMine::PreDetonate );

+			SetNextThink( gpGlobals->curtime + random->RandomFloat( 0.1f, 0.5f ) );

+		}

+		else

+		{

+			// dazed

+			m_RollerController.m_vecAngular.Init();

+			m_flActiveTime = gpGlobals->curtime + GetStunDelay();

+			Hop( 300 );

+		}

+	}

+

+	return 0;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Causes the roller to hop into the air

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::Hop( float height )

+{

+	if ( m_flNextHop > gpGlobals->curtime )

+		return;

+

+	if ( GetMoveType() == MOVETYPE_VPHYSICS )

+	{

+		IPhysicsObject *pPhysObj = VPhysicsGetObject();

+		pPhysObj->ApplyForceCenter( Vector(0,0,1) * height * pPhysObj->GetMass() );

+		

+		AngularImpulse	angVel;

+		angVel.Random( -400.0f, 400.0f );

+		pPhysObj->AddVelocity( NULL, &angVel );

+

+		m_flNextHop = gpGlobals->curtime + ROLLERMINE_HOP_DELAY;

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Makes warning noise before actual explosion occurs

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::PreDetonate( void )

+{

+	Hop( 300 );

+

+	SetTouch( NULL );

+	SetThink( &CNPC_RollerMine::Explode );

+	SetNextThink( gpGlobals->curtime + 0.5f );

+

+	EmitSound( "NPC_RollerMine.Hurt" );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::Explode( void )

+{

+	m_takedamage = DAMAGE_NO;

+

+	//FIXME: Hack to make thrown mines more deadly and fun

+	float expDamage = m_bIsPrimed ? 100 : 25;

+

+	//If we've been hacked and we're blowing up cause we've been shut down then do moderate damage.

+	if ( m_bPowerDown == true )

+	{

+		expDamage = 50;

+	}

+

+	// Underwater explosion?

+	if ( UTIL_PointContents( GetAbsOrigin() ) & MASK_WATER )

+	{

+		CEffectData	data;

+		data.m_vOrigin = WorldSpaceCenter();

+		data.m_flMagnitude = expDamage;

+		data.m_flScale = 128;

+		data.m_fFlags = ( SF_ENVEXPLOSION_NOSPARKS | SF_ENVEXPLOSION_NODLIGHTS | SF_ENVEXPLOSION_NOSMOKE );

+		DispatchEffect( "WaterSurfaceExplosion", data );

+	}

+	else

+	{

+		ExplosionCreate( WorldSpaceCenter(), GetLocalAngles(), this, expDamage, 128, true );

+	}

+

+	CTakeDamageInfo	info( this, this, 1, DMG_GENERIC );

+	Event_Killed( info );

+

+	// Remove myself a frame from now to avoid doing it in the middle of running AI

+	SetThink( &CNPC_RollerMine::SUB_Remove );

+	SetNextThink( gpGlobals->curtime );

+}

+

+const float MAX_ROLLING_SPEED = 720;

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+float CNPC_RollerMine::RollingSpeed()

+{

+	IPhysicsObject *pPhysics = VPhysicsGetObject();

+	if ( !m_hVehicleStuckTo && !m_bHeld && pPhysics && !pPhysics->IsAsleep() )

+	{

+		AngularImpulse angVel;

+		pPhysics->GetVelocity( NULL, &angVel );

+		float rollingSpeed = angVel.Length() - 90;

+		rollingSpeed = clamp( rollingSpeed, 1, MAX_ROLLING_SPEED );

+		rollingSpeed *= (1/MAX_ROLLING_SPEED);

+		return rollingSpeed;

+	}

+	return 0;

+}

+

+//-----------------------------------------------------------------------------

+//-----------------------------------------------------------------------------

+float CNPC_RollerMine::GetStunDelay()

+{

+	if( m_bHackedByAlyx )

+	{

+		return 0.1f;

+	}

+	else

+	{

+		return sk_rollermine_stun_delay.GetFloat();

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: We've been dropped by a dropship. Embed in the ground if we land on it.

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::EmbedOnGroundImpact()

+{

+	m_bEmbedOnGroundImpact = true;

+

+	SetTouch( &CNPC_RollerMine::EmbedTouch );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::PrescheduleThink()

+{

+	// Are we underwater?

+	if ( UTIL_PointContents( GetAbsOrigin() ) & MASK_WATER )

+	{

+		// As soon as we're far enough underwater, detonate

+		Vector vecAboveMe = GetAbsOrigin() + Vector(0,0,64);

+		if ( UTIL_PointContents( vecAboveMe ) & MASK_WATER )

+		{

+			Explode();

+			return;

+		}

+	}

+

+	UpdateRollingSound();

+	UpdatePingSound();

+	BaseClass::PrescheduleThink();

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::UpdateRollingSound()

+{

+	if ( m_rollingSoundState == ROLL_SOUND_NOT_READY )

+		return;

+

+	rollingsoundstate_t soundState = ROLL_SOUND_OFF;

+	float rollingSpeed = RollingSpeed();

+	if ( rollingSpeed > 0 )

+	{

+		soundState = m_bIsOpen ? ROLL_SOUND_OPEN : ROLL_SOUND_CLOSED;

+	}

+

+

+	CSoundEnvelopeController &controller = CSoundEnvelopeController::GetController();

+	CSoundParameters params;

+	switch( soundState )

+	{

+	case ROLL_SOUND_CLOSED:

+		CBaseEntity::GetParametersForSound( "NPC_RollerMine.Roll", params, NULL );

+		break;

+	case ROLL_SOUND_OPEN:

+		CBaseEntity::GetParametersForSound( "NPC_RollerMine.RollWithSpikes", params, NULL );

+		break;

+

+	case ROLL_SOUND_OFF:

+		// no sound

+		break;

+	}

+

+	// start the new sound playing if necessary

+	if ( m_rollingSoundState != soundState )

+	{

+		StopRollingSound();

+

+		m_rollingSoundState = soundState;

+

+		if ( m_rollingSoundState == ROLL_SOUND_OFF )

+			return;

+

+		CPASAttenuationFilter filter( this );

+		m_pRollSound = controller.SoundCreate( filter, entindex(), params.channel, params.soundname, params.soundlevel );

+		controller.Play( m_pRollSound, params.volume, params.pitch );

+		m_rollingSoundState = soundState;

+	}

+

+	if ( m_pRollSound )

+	{

+		// for tuning

+		//DevMsg("SOUND: %s, VOL: %.1f\n", m_rollingSoundState == ROLL_SOUND_CLOSED ? "CLOSED" : "OPEN ", rollingSpeed );

+		controller.SoundChangePitch( m_pRollSound, params.pitchlow + (params.pitchhigh - params.pitchlow) * rollingSpeed, 0.1 );

+		controller.SoundChangeVolume( m_pRollSound, params.volume * rollingSpeed, 0.1 );

+	}

+}

+

+

+void CNPC_RollerMine::StopRollingSound()

+{

+	CSoundEnvelopeController &controller = CSoundEnvelopeController::GetController();

+	controller.SoundDestroy( m_pRollSound );

+	m_pRollSound = NULL;

+}

+

+void CNPC_RollerMine::UpdatePingSound()

+{

+	float pingSpeed = 0;

+	if ( m_bIsOpen && !IsShocking() && !m_bHeld )

+	{

+		CBaseEntity *pEnemy = GetEnemy();

+		if ( pEnemy )

+		{

+			pingSpeed = EnemyDistance( pEnemy );

+			pingSpeed = clamp( pingSpeed, 1, ROLLERMINE_OPEN_THRESHOLD );

+			pingSpeed *= (1.0f/ROLLERMINE_OPEN_THRESHOLD);

+		}

+	}

+

+	if ( pingSpeed > 0 )

+	{

+		pingSpeed = 1-pingSpeed;

+		CSoundEnvelopeController &controller = CSoundEnvelopeController::GetController();

+		CSoundParameters params;

+		CBaseEntity::GetParametersForSound( "NPC_RollerMine.Ping", params, NULL );

+		if ( !m_pPingSound )

+		{

+			CPASAttenuationFilter filter( this );

+			m_pPingSound = controller.SoundCreate( filter, entindex(), params.channel, params.soundname, params.soundlevel );

+			controller.Play( m_pPingSound, params.volume, 101 );

+		}

+

+		controller.SoundChangePitch( m_pPingSound, params.pitchlow + (params.pitchhigh - params.pitchlow) * pingSpeed, 0.1 );

+		controller.SoundChangeVolume( m_pPingSound, params.volume, 0.1 );

+		//DevMsg("PING: %.1f\n", pingSpeed );

+

+	}

+	else

+	{

+		StopPingSound();

+	}

+}

+

+

+void CNPC_RollerMine::StopPingSound()

+{

+	CSoundEnvelopeController &controller = CSoundEnvelopeController::GetController();

+	controller.SoundDestroy( m_pPingSound );

+	m_pPingSound = NULL;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::StopLoopingSounds( void )

+{

+	StopRollingSound();

+	StopPingSound();

+	BaseClass::StopLoopingSounds();

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *pEnemy - 

+// Output : Returns true on success, false on failure.

+//-----------------------------------------------------------------------------

+bool CNPC_RollerMine::IsValidEnemy( CBaseEntity *pEnemy )

+{

+	// If the enemy's over the vehicle detection range, and it's not a player in a vehicle, ignore it

+	if ( pEnemy )

+	{

+		float flDistance = GetAbsOrigin().DistTo( pEnemy->GetAbsOrigin() );

+		if ( flDistance >= m_flSeeVehiclesOnlyBeyond )

+		{

+			// Handle vehicles

+			CBaseCombatCharacter *pCCEnemy = pEnemy->MyCombatCharacterPointer();

+			if ( pCCEnemy != NULL && pCCEnemy->IsInAVehicle() )

+			{

+				// If we're buried, we only care when they're heading directly towards us

+				if ( m_bBuried )

+					return ( VehicleHeading( pCCEnemy->GetVehicle()->GetVehicleEnt() ) > DOT_20DEGREE );

+

+				// If we're not buried, chase him as long as he's not heading away from us

+				return ( VehicleHeading( pCCEnemy->GetVehicleEntity() ) > 0 );

+			}

+

+			return false;

+		}

+

+		// Never pick something I fear

+		if ( IRelationType( pEnemy ) == D_FR )

+			return false;

+

+		// Don't attack flying things.

+		if ( pEnemy->GetMoveType() == MOVETYPE_FLY )

+			return false;

+	}

+

+	return BaseClass::IsValidEnemy( pEnemy );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+bool CNPC_RollerMine::EnemyInVehicle( void )

+{

+	// Clearly the enemy is not...

+	if ( GetEnemy() == NULL )

+		return false;

+

+	// If the target is in a vehicle, let the convar choose

+	CBaseCombatCharacter *pCCEnemy = GetEnemy()->MyCombatCharacterPointer();

+	if ( pCCEnemy != NULL && pCCEnemy->IsInAVehicle() )

+		return ( sk_rollermine_vehicle_intercept.GetBool() );

+

+	return false;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+float CNPC_RollerMine::VehicleHeading( CBaseEntity *pVehicle )

+{

+	Vector vecVelocity = pVehicle->GetSmoothedVelocity();

+	float flSpeed = VectorNormalize( vecVelocity );

+	Vector vecToMine = GetAbsOrigin() - pVehicle->GetAbsOrigin();

+	VectorNormalize( vecToMine );

+

+	// If it's not moving, consider it moving towards us, but not directly

+	// This will enable already active rollers to chase the vehicle if it's stationary.

+	if ( flSpeed < 10 )

+		return 0.1;

+

+	return DotProduct( vecVelocity, vecToMine );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : &info - 

+//			&vecDir - 

+//			*ptr - 

+//-----------------------------------------------------------------------------

+void CNPC_RollerMine::TraceAttack( const CTakeDamageInfo &info, const Vector &vecDir, trace_t *ptr, CDmgAccumulator *pAccumulator )

+{

+	if ( info.GetDamageType() & (DMG_BULLET | DMG_CLUB) )

+	{

+		CTakeDamageInfo newInfo( info );

+

+		// If we're stuck to the car, increase it even more

+		if ( GetVehicleStuckTo() )

+		{

+			newInfo.SetDamageForce( info.GetDamageForce() * 40 );

+		}

+		else

+		{

+			newInfo.SetDamageForce( info.GetDamageForce() * 20 );

+		}

+

+		BaseClass::TraceAttack( newInfo, vecDir, ptr, pAccumulator );

+		return;

+	}

+

+	BaseClass::TraceAttack( info, vecDir, ptr, pAccumulator );

+}

+

+//-----------------------------------------------------------------------------

+//

+// Schedules

+//

+//-----------------------------------------------------------------------------

+

+AI_BEGIN_CUSTOM_NPC( npc_rollermine, CNPC_RollerMine )

+

+	//Tasks

+	DECLARE_TASK( TASK_ROLLERMINE_CHARGE_ENEMY )

+	DECLARE_TASK( TASK_ROLLERMINE_BURIED_WAIT )

+	DECLARE_TASK( TASK_ROLLERMINE_UNBURROW )

+	DECLARE_TASK( TASK_ROLLERMINE_GET_PATH_TO_FLEE )

+	DECLARE_TASK( TASK_ROLLERMINE_NUDGE_TOWARDS_NODES )

+	DECLARE_TASK( TASK_ROLLERMINE_RETURN_TO_PLAYER )

+	DECLARE_TASK( TASK_ROLLERMINE_POWERDOWN )

+

+	//Schedules

+

+	DEFINE_SCHEDULE

+	(

+	SCHED_ROLLERMINE_BURIED_WAIT,

+

+		"	Tasks"

+		"		TASK_ROLLERMINE_BURIED_WAIT		0"

+		"	"

+		"	Interrupts"

+		"		COND_NEW_ENEMY"

+		"		COND_LIGHT_DAMAGE"

+	)

+

+	DEFINE_SCHEDULE

+	(

+	SCHED_ROLLERMINE_BURIED_UNBURROW,

+

+		"	Tasks"

+		"		TASK_ROLLERMINE_UNBURROW		0"

+		"	"

+		"	Interrupts"

+	)

+	

+	DEFINE_SCHEDULE

+	(

+	SCHED_ROLLERMINE_RANGE_ATTACK1,

+

+		"	Tasks"

+		"		TASK_SET_FAIL_SCHEDULE			SCHEDULE:SCHED_CHASE_ENEMY"

+		"		TASK_ROLLERMINE_CHARGE_ENEMY	0"

+		"	"

+		"	Interrupts"

+		"		COND_ENEMY_DEAD"

+		"		COND_NEW_ENEMY"

+		"		COND_ENEMY_OCCLUDED"

+		"		COND_ENEMY_TOO_FAR"

+	)

+	

+	DEFINE_SCHEDULE

+	(

+	SCHED_ROLLERMINE_CHASE_ENEMY,

+

+		"	Tasks"

+		"		TASK_SET_FAIL_SCHEDULE			SCHEDULE:SCHED_ROLLERMINE_RANGE_ATTACK1"

+		"		TASK_SET_TOLERANCE_DISTANCE		24"

+		"		TASK_GET_PATH_TO_ENEMY			0"

+		"		TASK_RUN_PATH					0"

+		"		TASK_WAIT_FOR_MOVEMENT			0"

+		"	"

+		"	Interrupts"

+		"		COND_ENEMY_DEAD"

+		"		COND_ENEMY_UNREACHABLE"

+		"		COND_ENEMY_TOO_FAR"

+		"		COND_CAN_RANGE_ATTACK1"

+		"		COND_TASK_FAILED"

+		"		COND_SEE_FEAR"

+	)

+

+	DEFINE_SCHEDULE

+	(

+	SCHED_ROLLERMINE_FLEE,

+

+		"	Tasks"

+		"		TASK_SET_FAIL_SCHEDULE				SCHEDULE:SCHED_IDLE_STAND"

+		"		TASK_ROLLERMINE_GET_PATH_TO_FLEE	300"

+		"		TASK_RUN_PATH						0"

+		"		TASK_STOP_MOVING					0"

+		"	"

+		"	Interrupts"

+		"		COND_NEW_ENEMY"

+		"		COND_TASK_FAILED"

+	)

+

+	DEFINE_SCHEDULE

+	(

+	SCHED_ROLLERMINE_ALERT_STAND,

+

+	"	Tasks"

+	"		TASK_STOP_MOVING			0"

+	"		TASK_FACE_REASONABLE		0"

+	"		TASK_SET_ACTIVITY			ACTIVITY:ACT_IDLE"

+	"		TASK_WAIT					2"

+	""

+	"	Interrupts"

+	"		COND_NEW_ENEMY"

+	"		COND_SEE_ENEMY"

+	"		COND_SEE_FEAR"

+	"		COND_LIGHT_DAMAGE"

+	"		COND_HEAVY_DAMAGE"

+	"		COND_PROVOKED"

+	"		COND_SMELL"

+	"		COND_HEAR_COMBAT"		// sound flags

+	"		COND_HEAR_WORLD"

+	"		COND_HEAR_PLAYER"

+	"		COND_HEAR_DANGER"

+	"		COND_HEAR_BULLET_IMPACT"

+	"		COND_IDLE_INTERRUPT"

+	)

+

+	DEFINE_SCHEDULE

+	(

+	SCHED_ROLLERMINE_NUDGE_TOWARDS_NODES,

+

+	"	Tasks"

+	"		TASK_ROLLERMINE_NUDGE_TOWARDS_NODES		0"

+	"		TASK_WAIT								1.5"

+	""

+	"	Interrupts"

+	""

+	)

+

+	DEFINE_SCHEDULE

+	(

+		SCHED_ROLLERMINE_PATH_TO_PLAYER,

+

+		"	Tasks"

+		"		TASK_SET_FAIL_SCHEDULE			SCHEDULE:SCHED_ROLLERMINE_ALERT_STAND"

+		"		TASK_SET_TOLERANCE_DISTANCE		200"

+		"		TASK_GET_PATH_TO_PLAYER			0"

+		"		TASK_RUN_PATH					0"

+		"		TASK_WAIT_FOR_MOVEMENT			0"

+		""

+		"	Interrupts"

+		"		COND_NEW_ENEMY"

+		"		COND_SEE_ENEMY"

+		"		COND_SEE_FEAR"

+		"		COND_LIGHT_DAMAGE"

+		"		COND_HEAVY_DAMAGE"

+		"		COND_PROVOKED"

+		"		COND_SMELL"

+		"		COND_HEAR_COMBAT"		// sound flags

+		"		COND_HEAR_WORLD"

+		"		COND_HEAR_PLAYER"

+		"		COND_HEAR_DANGER"

+		"		COND_HEAR_BULLET_IMPACT"

+		"		COND_IDLE_INTERRUPT"

+		"		COND_SEE_PLAYER"

+	)

+

+	DEFINE_SCHEDULE

+	(

+		SCHED_ROLLERMINE_ROLL_TO_PLAYER,

+

+		"	Tasks"

+		"		TASK_SET_FAIL_SCHEDULE				SCHEDULE:SCHED_ROLLERMINE_ALERT_STAND"

+		"		TASK_SET_TOLERANCE_DISTANCE			200"

+		"		TASK_ROLLERMINE_RETURN_TO_PLAYER	0"

+		""

+		"	Interrupts"

+		"		COND_NEW_ENEMY"

+		"		COND_SEE_ENEMY"

+		"		COND_SEE_FEAR"

+		"		COND_LIGHT_DAMAGE"

+		"		COND_HEAVY_DAMAGE"

+		"		COND_PROVOKED"

+		"		COND_SMELL"

+		"		COND_HEAR_COMBAT"		// sound flags

+		"		COND_HEAR_WORLD"

+		"		COND_HEAR_PLAYER"

+		"		COND_HEAR_DANGER"

+		"		COND_HEAR_BULLET_IMPACT"

+		"		COND_IDLE_INTERRUPT"

+	)

+

+	DEFINE_SCHEDULE

+	(

+		SCHED_ROLLERMINE_POWERDOWN,

+

+		"	Tasks"

+		"		TASK_STOP_MOVING			0"

+		"		TASK_SET_ACTIVITY			ACTIVITY:ACT_IDLE"

+		"		TASK_ROLLERMINE_POWERDOWN	0"

+		""

+		"	Interrupts"

+		""

+	);

+

+AI_END_CUSTOM_NPC()